Medicare Informatics - Medicare Informatics & Data Analysis in Cloud

Injury, poisoning and certain other consequences of external causes (S00-T88)

Note:: Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

Use additional: code to identify any retained foreign body, if applicable (Z18.-)
Excludes 1:: birth trauma (P10-P15)
obstetric trauma (O70-O71)

Burns and corrosions of external body surface, specified by site (T20-T25)

Includes:: burns and corrosions of first degree [erythema]
burns and corrosions of second degree [blisters][epidermal loss]
burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]
Use additional: code from category T31 or T32 to identify extent of body surface involved

T20

Burn and corrosion of head, face, and neck [+]

Excludes 2:	burn and corrosion of ear drum (T28.41, T28.91) burn and corrosion of eye and adnexa (T26.-) burn and corrosion of mouth and pharynx (T28.0)
The appropriate 7th character is to be added to each code from category T20 A - initial encounter D - subsequent encounter S - sequela

T20.0

Burn of unspecified degree of head, face, and neck [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T20.00

Burn of unspecified degree of head, face, and neck, unspecified site

T20.01

Burn of unspecified degree of ear [any part, except ear drum] [+]

Excludes 2:

burn of ear drum (T28.41-)

T20.02

Burn of unspecified degree of lip(s)

T20.03

Burn of unspecified degree of chin

T20.04

Burn of unspecified degree of nose (septum)

T20.05

Burn of unspecified degree of scalp [any part]

T20.06

Burn of unspecified degree of forehead and cheek

T20.07

Burn of unspecified degree of neck

T20.09

Burn of unspecified degree of multiple sites of head, face, and neck

T20.1

Burn of first degree of head, face, and neck [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T20.10

Burn of first degree of head, face, and neck, unspecified site

T20.11

Burn of first degree of ear [any part, except ear drum] [+]

Excludes 2:

burn of ear drum (T28.41-)

T20.12

Burn of first degree of lip(s)

T20.13

Burn of first degree of chin

T20.14

Burn of first degree of nose (septum)

T20.15

Burn of first degree of scalp [any part]

T20.16

Burn of first degree of forehead and cheek

T20.17

Burn of first degree of neck

T20.19

Burn of first degree of multiple sites of head, face, and neck

T20.2

Burn of second degree of head, face, and neck [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T20.20

Burn of second degree of head, face, and neck, unspecified site

T20.21

Burn of second degree of ear [any part, except ear drum] [+]

Excludes 2:

burn of ear drum (T28.41-)

T20.22

Burn of second degree of lip(s)

T20.23

Burn of second degree of chin

T20.24

Burn of second degree of nose (septum)

T20.25

Burn of second degree of scalp [any part]

T20.26

Burn of second degree of forehead and cheek

T20.27

Burn of second degree of neck

T20.29

Burn of second degree of multiple sites of head, face, and neck

T20.3

Burn of third degree of head, face, and neck [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T20.30

Burn of third degree of head, face, and neck, unspecified site

T20.31

Burn of third degree of ear [any part, except ear drum] [+]

Excludes 2:

burn of ear drum (T28.41-)

T20.32

Burn of third degree of lip(s)

T20.33

Burn of third degree of chin

T20.34

Burn of third degree of nose (septum)

T20.35

Burn of third degree of scalp [any part]

T20.36

Burn of third degree of forehead and cheek

T20.37

Burn of third degree of neck

T20.39

Burn of third degree of multiple sites of head, face, and neck

T20.4

Corrosion of unspecified degree of head, face, and neck [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T20.40

Corrosion of unspecified degree of head, face, and neck, unspecified site

T20.41

Corrosion of unspecified degree of ear [any part, except ear drum] [+]

Excludes 2:

corrosion of ear drum (T28.91-)

T20.42

Corrosion of unspecified degree of lip(s)

T20.43

Corrosion of unspecified degree of chin

T20.44

Corrosion of unspecified degree of nose (septum)

T20.45

Corrosion of unspecified degree of scalp [any part]

T20.46

Corrosion of unspecified degree of forehead and cheek

T20.47

Corrosion of unspecified degree of neck

T20.49

Corrosion of unspecified degree of multiple sites of head, face, and neck

T20.5

Corrosion of first degree of head, face, and neck [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T20.50

Corrosion of first degree of head, face, and neck, unspecified site

T20.51

Corrosion of first degree of ear [any part, except ear drum] [+]

Excludes 2:

corrosion of ear drum (T28.91-)

T20.52

Corrosion of first degree of lip(s)

T20.53

Corrosion of first degree of chin

T20.54

Corrosion of first degree of nose (septum)

T20.55

Corrosion of first degree of scalp [any part]

T20.56

Corrosion of first degree of forehead and cheek

T20.57

Corrosion of first degree of neck

T20.59

Corrosion of first degree of multiple sites of head, face, and neck

T20.6

Corrosion of second degree of head, face, and neck [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T20.60

Corrosion of second degree of head, face, and neck, unspecified site

T20.61

Corrosion of second degree of ear [any part, except ear drum] [+]

Excludes 2:

corrosion of ear drum (T28.91-)

T20.62

Corrosion of second degree of lip(s)

T20.63

Corrosion of second degree of chin

T20.64

Corrosion of second degree of nose (septum)

T20.65

Corrosion of second degree of scalp [any part]

T20.66

Corrosion of second degree of forehead and cheek

T20.67

Corrosion of second degree of neck

T20.69

Corrosion of second degree of multiple sites of head, face, and neck

T20.7

Corrosion of third degree of head, face, and neck [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T20.70

Corrosion of third degree of head, face, and neck, unspecified site

T20.71

Corrosion of third degree of ear [any part, except ear drum] [+]

Excludes 2:

corrosion of ear drum (T28.91-)

T20.72

Corrosion of third degree of lip(s)

T20.73

Corrosion of third degree of chin

T20.74

Corrosion of third degree of nose (septum)

T20.75

Corrosion of third degree of scalp [any part]

T20.76

Corrosion of third degree of forehead and cheek

T20.77

Corrosion of third degree of neck

T20.79

Corrosion of third degree of multiple sites of head, face, and neck

T21

Burn and corrosion of trunk [+]

Includes:	burns and corrosion of hip region
Excludes 2:	burns and corrosion of axilla (T22.- with fifth character 4) burns and corrosion of scapular region (T22.- with fifth character 6) burns and corrosion of shoulder (T22.- with fifth character 5)
The appropriate 7th character is to be added to each code from category T21 A - initial encounter D - subsequent encounter S - sequela

T21.0

Burn of unspecified degree of trunk [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T21.1

Burn of first degree of trunk [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T21.2

Burn of second degree of trunk [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T21.3

Burn of third degree of trunk [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T21.4

Corrosion of unspecified degree of trunk [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T21.40

Corrosion of unspecified degree of trunk, unspecified site

T21.41

Corrosion of unspecified degree of chest wall
Corrosion of unspecified degree of breast

T21.42

Corrosion of unspecified degree of abdominal wall
Corrosion of unspecified degree of flank
Corrosion of unspecified degree of groin

T21.43

Corrosion of unspecified degree of upper back
Corrosion of unspecified degree of interscapular region

T21.44

Corrosion of unspecified degree of lower back

T21.45

Corrosion of unspecified degree of buttock
Corrosion of unspecified degree of anus

T21.46

Corrosion of unspecified degree of male genital region
Corrosion of unspecified degree of penis
Corrosion of unspecified degree of scrotum
Corrosion of unspecified degree of testis

T21.47

Corrosion of unspecified degree of female genital region
Corrosion of unspecified degree of labium (majus) (minus)
Corrosion of unspecified degree of perineum
Corrosion of unspecified degree of vulva

Excludes 2:

corrosion of vagina (T28.8)

T21.49

Corrosion of unspecified degree of other site of trunk

T21.5

Corrosion of first degree of trunk [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T21.6

Corrosion of second degree of trunk [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T21.7

Corrosion of third degree of trunk [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T22

Burn and corrosion of shoulder and upper limb, except wrist and hand [+]

Excludes 2:	burn and corrosion of interscapular region (T21.-) burn and corrosion of wrist and hand (T23.-)
The appropriate 7th character is to be added to each code from category T22 A - initial encounter D - subsequent encounter S - sequela

T22.0

Burn of unspecified degree of shoulder and upper limb, except wrist and hand [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T22.00

Burn of unspecified degree of shoulder and upper limb, except wrist and hand, unspecified site

T22.01

Burn of unspecified degree of forearm [+]

T22.02

Burn of unspecified degree of elbow [+]

T22.03

Burn of unspecified degree of upper arm [+]

T22.04

Burn of unspecified degree of axilla [+]

T22.05

Burn of unspecified degree of shoulder [+]

T22.06

Burn of unspecified degree of scapular region [+]

T22.09

Burn of unspecified degree of multiple sites of shoulder and upper limb, except wrist and hand [+]

T22.1

Burn of first degree of shoulder and upper limb, except wrist and hand [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T22.10

Burn of first degree of shoulder and upper limb, except wrist and hand, unspecified site

T22.11

Burn of first degree of forearm [+]

T22.12

Burn of first degree of elbow [+]

T22.13

Burn of first degree of upper arm [+]

T22.14

Burn of first degree of axilla [+]

T22.15

Burn of first degree of shoulder [+]

T22.16

Burn of first degree of scapular region [+]

T22.19

Burn of first degree of multiple sites of shoulder and upper limb, except wrist and hand [+]

T22.2

Burn of second degree of shoulder and upper limb, except wrist and hand [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T22.20

Burn of second degree of shoulder and upper limb, except wrist and hand, unspecified site

T22.21

Burn of second degree of forearm [+]

T22.22

Burn of second degree of elbow [+]

T22.23

Burn of second degree of upper arm [+]

T22.24

Burn of second degree of axilla [+]

T22.25

Burn of second degree of shoulder [+]

T22.26

Burn of second degree of scapular region [+]

T22.29

Burn of second degree of multiple sites of shoulder and upper limb, except wrist and hand [+]

T22.3

Burn of third degree of shoulder and upper limb, except wrist and hand [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T22.30

Burn of third degree of shoulder and upper limb, except wrist and hand, unspecified site

T22.31

Burn of third degree of forearm [+]

T22.32

Burn of third degree of elbow [+]

T22.33

Burn of third degree of upper arm [+]

T22.34

Burn of third degree of axilla [+]

T22.35

Burn of third degree of shoulder [+]

T22.36

Burn of third degree of scapular region [+]

T22.39

Burn of third degree of multiple sites of shoulder and upper limb, except wrist and hand [+]

T22.4

Corrosion of unspecified degree of shoulder and upper limb, except wrist and hand [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T22.40

Corrosion of unspecified degree of shoulder and upper limb, except wrist and hand, unspecified site

T22.41

Corrosion of unspecified degree of forearm [+]

T22.42

Corrosion of unspecified degree of elbow [+]

T22.43

Corrosion of unspecified degree of upper arm [+]

T22.44

Corrosion of unspecified degree of axilla [+]

T22.45

Corrosion of unspecified degree of shoulder [+]

T22.46

Corrosion of unspecified degree of scapular region [+]

T22.49

Corrosion of unspecified degree of multiple sites of shoulder and upper limb, except wrist and hand [+]

T22.5

Corrosion of first degree of shoulder and upper limb, except wrist and hand [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T22.50

Corrosion of first degree of shoulder and upper limb, except wrist and hand unspecified site

T22.51

Corrosion of first degree of forearm [+]

T22.52

Corrosion of first degree of elbow [+]

T22.53

Corrosion of first degree of upper arm [+]

T22.54

Corrosion of first degree of axilla [+]

T22.55

Corrosion of first degree of shoulder [+]

T22.56

Corrosion of first degree of scapular region [+]

T22.59

Corrosion of first degree of multiple sites of shoulder and upper limb, except wrist and hand [+]

T22.6

Corrosion of second degree of shoulder and upper limb, except wrist and hand [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T22.60

Corrosion of second degree of shoulder and upper limb, except wrist and hand, unspecified site

T22.61

Corrosion of second degree of forearm [+]

T22.62

Corrosion of second degree of elbow [+]

T22.63

Corrosion of second degree of upper arm [+]

T22.64

Corrosion of second degree of axilla [+]

T22.65

Corrosion of second degree of shoulder [+]

T22.66

Corrosion of second degree of scapular region [+]

T22.69

Corrosion of second degree of multiple sites of shoulder and upper limb, except wrist and hand [+]

T22.7

Corrosion of third degree of shoulder and upper limb, except wrist and hand [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T22.70

Corrosion of third degree of shoulder and upper limb, except wrist and hand, unspecified site

T22.71

Corrosion of third degree of forearm [+]

T22.72

Corrosion of third degree of elbow [+]

T22.73

Corrosion of third degree of upper arm [+]

T22.74

Corrosion of third degree of axilla [+]

T22.75

Corrosion of third degree of shoulder [+]

T22.76

Corrosion of third degree of scapular region [+]

T22.79

Corrosion of third degree of multiple sites of shoulder and upper limb, except wrist and hand [+]

T23

Burn and corrosion of wrist and hand [+]

The appropriate 7th character is to be added to each code from category T23
A - initial encounter
D - subsequent encounter
S - sequela

T23.0

Burn of unspecified degree of wrist and hand [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T23.00

Burn of unspecified degree of hand, unspecified site [+]

T23.01

Burn of unspecified degree of thumb (nail) [+]

T23.02

Burn of unspecified degree of single finger (nail) except thumb [+]

T23.03

Burn of unspecified degree of multiple fingers (nail), not including thumb [+]

T23.04

Burn of unspecified degree of multiple fingers (nail), including thumb [+]

T23.05

Burn of unspecified degree of palm [+]

T23.06

Burn of unspecified degree of back of hand [+]

T23.07

Burn of unspecified degree of wrist [+]

T23.09

Burn of unspecified degree of multiple sites of wrist and hand [+]

T23.1

Burn of first degree of wrist and hand [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T23.10

Burn of first degree of hand, unspecified site [+]

T23.11

Burn of first degree of thumb (nail) [+]

T23.12

Burn of first degree of single finger (nail) except thumb [+]

T23.13

Burn of first degree of multiple fingers (nail), not including thumb [+]

T23.14

Burn of first degree of multiple fingers (nail), including thumb [+]

T23.15

Burn of first degree of palm [+]

T23.16

Burn of first degree of back of hand [+]

T23.17

Burn of first degree of wrist [+]

T23.19

Burn of first degree of multiple sites of wrist and hand [+]

T23.2

Burn of second degree of wrist and hand [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T23.20

Burn of second degree of hand, unspecified site [+]

T23.21

Burn of second degree of thumb (nail) [+]

T23.22

Burn of second degree of single finger (nail) except thumb [+]

T23.23

Burn of second degree of multiple fingers (nail), not including thumb [+]

T23.24

Burn of second degree of multiple fingers (nail), including thumb [+]

T23.25

Burn of second degree of palm [+]

T23.26

Burn of second degree of back of hand [+]

T23.27

Burn of second degree of wrist [+]

T23.29

Burn of second degree of multiple sites of wrist and hand [+]

T23.3

Burn of third degree of wrist and hand [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T23.30

Burn of third degree of hand, unspecified site [+]

T23.31

Burn of third degree of thumb (nail) [+]

T23.32

Burn of third degree of single finger (nail) except thumb [+]

T23.33

Burn of third degree of multiple fingers (nail), not including thumb [+]

T23.34

Burn of third degree of multiple fingers (nail), including thumb [+]

T23.35

Burn of third degree of palm [+]

T23.36

Burn of third degree of back of hand [+]

T23.37

Burn of third degree of wrist [+]

T23.39

Burn of third degree of multiple sites of wrist and hand [+]

T23.4

Corrosion of unspecified degree of wrist and hand [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T23.40

Corrosion of unspecified degree of hand, unspecified site [+]

T23.41

Corrosion of unspecified degree of thumb (nail) [+]

T23.42

Corrosion of unspecified degree of single finger (nail) except thumb [+]

T23.43

Corrosion of unspecified degree of multiple fingers (nail), not including thumb [+]

T23.44

Corrosion of unspecified degree of multiple fingers (nail), including thumb [+]

T23.45

Corrosion of unspecified degree of palm [+]

T23.46

Corrosion of unspecified degree of back of hand [+]

T23.47

Corrosion of unspecified degree of wrist [+]

T23.49

Corrosion of unspecified degree of multiple sites of wrist and hand [+]

T23.5

Corrosion of first degree of wrist and hand [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T23.50

Corrosion of first degree of hand, unspecified site [+]

T23.51

Corrosion of first degree of thumb (nail) [+]

T23.52

Corrosion of first degree of single finger (nail) except thumb [+]

T23.53

Corrosion of first degree of multiple fingers (nail), not including thumb [+]

T23.54

Corrosion of first degree of multiple fingers (nail), including thumb [+]

T23.55

Corrosion of first degree of palm [+]

T23.56

Corrosion of first degree of back of hand [+]

T23.57

Corrosion of first degree of wrist [+]

T23.59

Corrosion of first degree of multiple sites of wrist and hand [+]

T23.6

Corrosion of second degree of wrist and hand [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T23.60

Corrosion of second degree of hand, unspecified site [+]

T23.61

Corrosion of second degree of thumb (nail) [+]

T23.62

Corrosion of second degree of single finger (nail) except thumb [+]

T23.63

Corrosion of second degree of multiple fingers (nail), not including thumb [+]

T23.64

Corrosion of second degree of multiple fingers (nail), including thumb [+]

T23.65

Corrosion of second degree of palm [+]

T23.66

Corrosion of second degree of back of hand [+]

T23.67

Corrosion of second degree of wrist [+]

T23.69

Corrosion of second degree of multiple sites of wrist and hand [+]

T23.7

Corrosion of third degree of wrist and hand [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T23.70

Corrosion of third degree of hand, unspecified site [+]

T23.71

Corrosion of third degree of thumb (nail) [+]

T23.72

Corrosion of third degree of single finger (nail) except thumb [+]

T23.73

Corrosion of third degree of multiple fingers (nail), not including thumb [+]

T23.74

Corrosion of third degree of multiple fingers (nail), including thumb [+]

T23.75

Corrosion of third degree of palm [+]

T23.76

Corrosion of third degree of back of hand [+]

T23.77

Corrosion of third degree of wrist [+]

T23.79

Corrosion of third degree of multiple sites of wrist and hand [+]

T24

Burn and corrosion of lower limb, except ankle and foot [+]

Excludes 2:	burn and corrosion of ankle and foot (T25.-) burn and corrosion of hip region (T21.-)
The appropriate 7th character is to be added to each code from category T24 A - initial encounter D - subsequent encounter S - sequela

T24.0

Burn of unspecified degree of lower limb, except ankle and foot [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T24.00

Burn of unspecified degree of unspecified site of lower limb, except ankle and foot [+]

T24.01

Burn of unspecified degree of thigh [+]

T24.02

Burn of unspecified degree of knee [+]

T24.03

Burn of unspecified degree of lower leg [+]

T24.09

Burn of unspecified degree of multiple sites of lower limb, except ankle and foot [+]

T24.1

Burn of first degree of lower limb, except ankle and foot [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T24.10

Burn of first degree of unspecified site of lower limb, except ankle and foot [+]

T24.11

Burn of first degree of thigh [+]

T24.12

Burn of first degree of knee [+]

T24.13

Burn of first degree of lower leg [+]

T24.19

Burn of first degree of multiple sites of lower limb, except ankle and foot [+]

T24.2

Burn of second degree of lower limb, except ankle and foot [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T24.20

Burn of second degree of unspecified site of lower limb, except ankle and foot [+]

T24.21

Burn of second degree of thigh [+]

T24.22

Burn of second degree of knee [+]

T24.23

Burn of second degree of lower leg [+]

T24.29

Burn of second degree of multiple sites of lower limb, except ankle and foot [+]

T24.3

Burn of third degree of lower limb, except ankle and foot [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T24.30

Burn of third degree of unspecified site of lower limb, except ankle and foot [+]

T24.31

Burn of third degree of thigh [+]

T24.32

Burn of third degree of knee [+]

T24.33

Burn of third degree of lower leg [+]

T24.39

Burn of third degree of multiple sites of lower limb, except ankle and foot [+]

T24.4

Corrosion of unspecified degree of lower limb, except ankle and foot [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T24.40

Corrosion of unspecified degree of unspecified site of lower limb, except ankle and foot [+]

T24.41

Corrosion of unspecified degree of thigh [+]

T24.42

Corrosion of unspecified degree of knee [+]

T24.43

Corrosion of unspecified degree of lower leg [+]

T24.49

Corrosion of unspecified degree of multiple sites of lower limb, except ankle and foot [+]

T24.5

Corrosion of first degree of lower limb, except ankle and foot [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T24.50

Corrosion of first degree of unspecified site of lower limb, except ankle and foot [+]

T24.51

Corrosion of first degree of thigh [+]

T24.52

Corrosion of first degree of knee [+]

T24.53

Corrosion of first degree of lower leg [+]

T24.59

Corrosion of first degree of multiple sites of lower limb, except ankle and foot [+]

T24.6

Corrosion of second degree of lower limb, except ankle and foot [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T24.60

Corrosion of second degree of unspecified site of lower limb, except ankle and foot [+]

T24.61

Corrosion of second degree of thigh [+]

T24.62

Corrosion of second degree of knee [+]

T24.63

Corrosion of second degree of lower leg [+]

T24.69

Corrosion of second degree of multiple sites of lower limb, except ankle and foot [+]

T24.7

Corrosion of third degree of lower limb, except ankle and foot [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T24.70

Corrosion of third degree of unspecified site of lower limb, except ankle and foot [+]

T24.71

Corrosion of third degree of thigh [+]

T24.72

Corrosion of third degree of knee [+]

T24.73

Corrosion of third degree of lower leg [+]

T24.79

Corrosion of third degree of multiple sites of lower limb, except ankle and foot [+]

T25

Burn and corrosion of ankle and foot [+]

The appropriate 7th character is to be added to each code from category T25
A - initial encounter
D - subsequent encounter
S - sequela

T25.0

Burn of unspecified degree of ankle and foot [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T25.01

Burn of unspecified degree of ankle [+]

T25.02

Burn of unspecified degree of foot [+]

Excludes 2:

burn of unspecified degree of toe(s) (nail) (T25.03-)

T25.03

Burn of unspecified degree of toe(s) (nail) [+]

T25.09

Burn of unspecified degree of multiple sites of ankle and foot [+]

T25.1

Burn of first degree of ankle and foot [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T25.11

Burn of first degree of ankle [+]

T25.12

Burn of first degree of foot [+]

Excludes 2:

burn of first degree of toe(s) (nail) (T25.13-)

T25.13

Burn of first degree of toe(s) (nail) [+]

T25.19

Burn of first degree of multiple sites of ankle and foot [+]

T25.2

Burn of second degree of ankle and foot [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T25.21

Burn of second degree of ankle [+]

T25.22

Burn of second degree of foot [+]

Excludes 2:

burn of second degree of toe(s) (nail) (T25.23-)

T25.23

Burn of second degree of toe(s) (nail) [+]

T25.29

Burn of second degree of multiple sites of ankle and foot [+]

T25.3

Burn of third degree of ankle and foot [+]

Use additional

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

T25.31

Burn of third degree of ankle [+]

T25.32

Burn of third degree of foot [+]

Excludes 2:

burn of third degree of toe(s) (nail) (T25.33-)

T25.33

Burn of third degree of toe(s) (nail) [+]

T25.39

Burn of third degree of multiple sites of ankle and foot [+]

T25.4

Corrosion of unspecified degree of ankle and foot [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T25.41

Corrosion of unspecified degree of ankle [+]

T25.42

Corrosion of unspecified degree of foot [+]

Excludes 2:

corrosion of unspecified degree of toe(s) (nail) (T25.43-)

T25.43

Corrosion of unspecified degree of toe(s) (nail) [+]

T25.49

Corrosion of unspecified degree of multiple sites of ankle and foot [+]

T25.5

Corrosion of first degree of ankle and foot [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T25.51

Corrosion of first degree of ankle [+]

T25.52

Corrosion of first degree of foot [+]

Excludes 2:

corrosion of first degree of toe(s) (nail) (T25.53-)

T25.53

Corrosion of first degree of toe(s) (nail) [+]

T25.59

Corrosion of first degree of multiple sites of ankle and foot [+]

T25.6

Corrosion of second degree of ankle and foot [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T25.61

Corrosion of second degree of ankle [+]

T25.62

Corrosion of second degree of foot [+]

Excludes 2:

corrosion of second degree of toe(s) (nail) (T25.63-)

T25.63

Corrosion of second degree of toe(s) (nail) [+]

T25.69

Corrosion of second degree of multiple sites of ankle and foot [+]

T25.7

Corrosion of third degree of ankle and foot [+]

Code first	(T51-T65) to identify chemical and intent
Use additional	external cause code to identify place (Y92)

T25.71

Corrosion of third degree of ankle [+]

T25.72

Corrosion of third degree of foot [+]

Excludes 2:

corrosion of third degree of toe(s) (nail) (T25.73-)

T25.73

Corrosion of third degree of toe(s) (nail) [+]

T25.79

Corrosion of third degree of multiple sites of ankle and foot [+]