Medicare Informatics - Medicare Informatics & Data Analysis in Cloud

Diseases of the musculoskeletal system and connective tissue (M00-M99)

Note:: Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Excludes 2:: arthropathic psoriasis (L40.5-)
certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
compartment syndrome (traumatic) (T79.A-)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Disorders of muscles (M60-M63)

Excludes 1:: dermatopolymyositis (M33.-)
myopathy in amyloidosis (E85.-)
myopathy in polyarteritis nodosa (M30.0)
myopathy in rheumatoid arthritis (M05.32)
myopathy in scleroderma (M34.-)
myopathy in Sjögren's syndrome (M35.03)
myopathy in systemic lupus erythematosus (M32.-)
Excludes 2:: muscular dystrophies and myopathies (G71-G72)

M60

Myositis [+]

Excludes 2:

inclusion body myositis [IBM] (G72.41)

M60.0

Infective myositis [+]
Tropical pyomyositis

Use additional

code (B95-B97) to identify infectious agent

M60.00

Infective myositis, unspecified site [+]

M60.01

Infective myositis, shoulder [+]

M60.02

Infective myositis, upper arm [+]

M60.03

Infective myositis, forearm [+]

M60.04

Infective myositis, hand and fingers [+]

M60.05

Infective myositis, thigh [+]

M60.06

Infective myositis, lower leg [+]

M60.07

Infective myositis, ankle, foot and toes [+]

M60.08

Infective myositis, other site

M60.09

Infective myositis, multiple sites

M60.1

Interstitial myositis [+]

M60.10

Interstitial myositis of unspecified site

M60.11

Interstitial myositis, shoulder [+]

M60.12

Interstitial myositis, upper arm [+]

M60.13

Interstitial myositis, forearm [+]

M60.14

Interstitial myositis, hand [+]

M60.15

Interstitial myositis, thigh [+]

M60.16

Interstitial myositis, lower leg [+]

M60.17

Interstitial myositis, ankle and foot [+]

M60.18

Interstitial myositis, other site

M60.19

Interstitial myositis, multiple sites

M60.2

Foreign body granuloma of soft tissue, not elsewhere classified [+]

Use additional	code to identify the type of retained foreign body (Z18.-)
Excludes 1:	foreign body granuloma of skin and subcutaneous tissue (L92.3)

M60.20

Foreign body granuloma of soft tissue, not elsewhere classified, unspecified site

M60.21

Foreign body granuloma of soft tissue, not elsewhere classified, shoulder [+]

M60.22

Foreign body granuloma of soft tissue, not elsewhere classified, upper arm [+]

M60.23

Foreign body granuloma of soft tissue, not elsewhere classified, forearm [+]

M60.24

Foreign body granuloma of soft tissue, not elsewhere classified, hand [+]

M60.25

Foreign body granuloma of soft tissue, not elsewhere classified, thigh [+]

M60.26

Foreign body granuloma of soft tissue, not elsewhere classified, lower leg [+]

M60.27

Foreign body granuloma of soft tissue, not elsewhere classified, ankle and foot [+]

M60.28

Foreign body granuloma of soft tissue, not elsewhere classified, other site

M60.8

Other myositis [+]

M60.80

Other myositis, unspecified site

M60.81

Other myositis shoulder [+]

M60.82

Other myositis, upper arm [+]

M60.83

Other myositis, forearm [+]

M60.84

Other myositis, hand [+]

M60.85

Other myositis, thigh [+]

M60.86

Other myositis, lower leg [+]

M60.87

Other myositis, ankle and foot [+]

M60.88

Other myositis, other site

M60.89

Other myositis, multiple sites

M60.9

Myositis, unspecified

M61

Calcification and ossification of muscle [+]

M61.0

Myositis ossificans traumatica [+]

M61.00

Myositis ossificans traumatica, unspecified site

M61.01

Myositis ossificans traumatica, shoulder [+]

M61.02

Myositis ossificans traumatica, upper arm [+]

M61.03

Myositis ossificans traumatica, forearm [+]

M61.04

Myositis ossificans traumatica, hand [+]

M61.05

Myositis ossificans traumatica, thigh [+]

M61.06

Myositis ossificans traumatica, lower leg [+]

M61.07

Myositis ossificans traumatica, ankle and foot [+]

M61.08

Myositis ossificans traumatica, other site

M61.09

Myositis ossificans traumatica, multiple sites

M61.1

Myositis ossificans progressiva [+]
Fibrodysplasia ossificans progressiva

M61.10

Myositis ossificans progressiva, unspecified site

M61.11

Myositis ossificans progressiva, shoulder [+]

M61.12

Myositis ossificans progressiva, upper arm [+]

M61.13

Myositis ossificans progressiva, forearm [+]

M61.14

Myositis ossificans progressiva, hand and finger(s) [+]

M61.15

Myositis ossificans progressiva, thigh [+]

M61.16

Myositis ossificans progressiva, lower leg [+]

M61.17

Myositis ossificans progressiva, ankle, foot and toe(s) [+]

M61.18

Myositis ossificans progressiva, other site

M61.19

Myositis ossificans progressiva, multiple sites

M61.2

Paralytic calcification and ossification of muscle [+]
Myositis ossificans associated with quadriplegia or paraplegia

M61.20

Paralytic calcification and ossification of muscle, unspecified site

M61.21

Paralytic calcification and ossification of muscle, shoulder [+]

M61.22

Paralytic calcification and ossification of muscle, upper arm [+]

M61.23

Paralytic calcification and ossification of muscle, forearm [+]

M61.24

Paralytic calcification and ossification of muscle, hand [+]

M61.25

Paralytic calcification and ossification of muscle, thigh [+]

M61.26

Paralytic calcification and ossification of muscle, lower leg [+]

M61.27

Paralytic calcification and ossification of muscle, ankle and foot [+]

M61.28

Paralytic calcification and ossification of muscle, other site

M61.29

Paralytic calcification and ossification of muscle, multiple sites

M61.3

Calcification and ossification of muscles associated with burns [+]
Myositis ossificans associated with burns

M61.30

Calcification and ossification of muscles associated with burns, unspecified site

M61.31

Calcification and ossification of muscles associated with burns, shoulder [+]

M61.32

Calcification and ossification of muscles associated with burns, upper arm [+]

M61.33

Calcification and ossification of muscles associated with burns, forearm [+]

M61.34

Calcification and ossification of muscles associated with burns, hand [+]

M61.35

Calcification and ossification of muscles associated with burns, thigh [+]

M61.36

Calcification and ossification of muscles associated with burns, lower leg [+]

M61.37

Calcification and ossification of muscles associated with burns, ankle and foot [+]

M61.38

Calcification and ossification of muscles associated with burns, other site

M61.39

Calcification and ossification of muscles associated with burns, multiple sites

M61.4

Other calcification of muscle [+]

Excludes 1:

calcific tendinitis NOS (M65.2-)
calcific tendinitis of shoulder (M75.3)

M61.40

Other calcification of muscle, unspecified site

M61.41

Other calcification of muscle, shoulder [+]

M61.42

Other calcification of muscle, upper arm [+]

M61.43

Other calcification of muscle, forearm [+]

M61.44

Other calcification of muscle, hand [+]

M61.45

Other calcification of muscle, thigh [+]

M61.46

Other calcification of muscle, lower leg [+]

M61.47

Other calcification of muscle, ankle and foot [+]

M61.48

Other calcification of muscle, other site

M61.49

Other calcification of muscle, multiple sites

M61.5

Other ossification of muscle [+]

M61.50

Other ossification of muscle, unspecified site

M61.51

Other ossification of muscle, shoulder [+]

M61.52

Other ossification of muscle, upper arm [+]

M61.53

Other ossification of muscle, forearm [+]

M61.54

Other ossification of muscle, hand [+]

M61.55

Other ossification of muscle, thigh [+]

M61.56

Other ossification of muscle, lower leg [+]

M61.57

Other ossification of muscle, ankle and foot [+]

M61.58

Other ossification of muscle, other site

M61.59

Other ossification of muscle, multiple sites

M61.9

Calcification and ossification of muscle, unspecified

M62

Other disorders of muscle [+]

Excludes 1:	alcoholic myopathy (G72.1) cramp and spasm (R25.2) drug-induced myopathy (G72.0) myalgia (M79.1-) stiff-man syndrome (G25.82)
Excludes 2:	nontraumatic hematoma of muscle (M79.81)

M62.0

Separation of muscle (nontraumatic) [+]
Diastasis of muscle

Excludes 1:

diastasis recti complicating pregnancy, labor and delivery (O71.8)
traumatic separation of muscle- see strain of muscle by body region

M62.00

Separation of muscle (nontraumatic), unspecified site

M62.01

Separation of muscle (nontraumatic), shoulder [+]

M62.02

Separation of muscle (nontraumatic), upper arm [+]

M62.03

Separation of muscle (nontraumatic), forearm [+]

M62.04

Separation of muscle (nontraumatic), hand [+]

M62.05

Separation of muscle (nontraumatic), thigh [+]

M62.06

Separation of muscle (nontraumatic), lower leg [+]

M62.07

Separation of muscle (nontraumatic), ankle and foot [+]

M62.08

Separation of muscle (nontraumatic), other site

M62.1

Other rupture of muscle (nontraumatic) [+]

Excludes 1:	traumatic rupture of muscle - see strain of muscle by body region
Excludes 2:	rupture of tendon (M66.-)

M62.10

Other rupture of muscle (nontraumatic), unspecified site

M62.11

Other rupture of muscle (nontraumatic), shoulder [+]

M62.12

Other rupture of muscle (nontraumatic), upper arm [+]

M62.13

Other rupture of muscle (nontraumatic), forearm [+]

M62.14

Other rupture of muscle (nontraumatic), hand [+]

M62.15

Other rupture of muscle (nontraumatic), thigh [+]

M62.16

Other rupture of muscle (nontraumatic), lower leg [+]

M62.17

Other rupture of muscle (nontraumatic), ankle and foot [+]

M62.18

Other rupture of muscle (nontraumatic), other site

M62.2

Nontraumatic ischemic infarction of muscle [+]

Excludes 1:

compartment syndrome (traumatic) (T79.A-)
nontraumatic compartment syndrome (M79.A-)
traumatic ischemia of muscle (T79.6)
rhabdomyolysis (M62.82)
Volkmann's ischemic contracture (T79.6)

M62.20

Nontraumatic ischemic infarction of muscle, unspecified site

M62.21

Nontraumatic ischemic infarction of muscle, shoulder [+]

M62.22

Nontraumatic ischemic infarction of muscle, upper arm [+]

M62.23

Nontraumatic ischemic infarction of muscle, forearm [+]

M62.24

Nontraumatic ischemic infarction of muscle, hand [+]

M62.25

Nontraumatic ischemic infarction of muscle, thigh [+]

M62.26

Nontraumatic ischemic infarction of muscle, lower leg [+]

M62.27

Nontraumatic ischemic infarction of muscle, ankle and foot [+]

M62.28

Nontraumatic ischemic infarction of muscle, other site

M62.3

Immobility syndrome (paraplegic)

M62.4

Contracture of muscle [+]
Contracture of tendon (sheath)

Excludes 1:

contracture of joint (M24.5-)

M62.40

Contracture of muscle, unspecified site

M62.41

Contracture of muscle, shoulder [+]

M62.42

Contracture of muscle, upper arm [+]

M62.43

Contracture of muscle, forearm [+]

M62.44

Contracture of muscle, hand [+]

M62.45

Contracture of muscle, thigh [+]

M62.46

Contracture of muscle, lower leg [+]

M62.47

Contracture of muscle, ankle and foot [+]

M62.48

Contracture of muscle, other site

M62.49

Contracture of muscle, multiple sites

M62.5

Muscle wasting and atrophy, not elsewhere classified [+]
Disuse atrophy NEC

Excludes 1:	neuralgic amyotrophy (G54.5) progressive muscular atrophy (G12.21) sarcopenia (M62.84)
Excludes 2:	pelvic muscle wasting (N81.84)

M62.50

Muscle wasting and atrophy, not elsewhere classified, unspecified site

M62.51

Muscle wasting and atrophy, not elsewhere classified, shoulder [+]

M62.52

Muscle wasting and atrophy, not elsewhere classified, upper arm [+]

M62.53

Muscle wasting and atrophy, not elsewhere classified, forearm [+]

M62.54

Muscle wasting and atrophy, not elsewhere classified, hand [+]

M62.55

Muscle wasting and atrophy, not elsewhere classified, thigh [+]

M62.56

Muscle wasting and atrophy, not elsewhere classified, lower leg [+]

M62.57

Muscle wasting and atrophy, not elsewhere classified, ankle and foot [+]

M62.58

Muscle wasting and atrophy, not elsewhere classified, other site

M62.59

Muscle wasting and atrophy, not elsewhere classified, multiple sites

M62.5A

Muscle wasting and atrophy, not elsewhere classified, back [+]

M62.8

Other specified disorders of muscle [+]

Excludes 2:

nontraumatic hematoma of muscle (M79.81)

M62.9

Disorder of muscle, unspecified

M63

Disorders of muscle in diseases classified elsewhere [+]

Code first	underlying disease, such as: leprosy (A30.-) neoplasm (C49.-, C79.89, D21.-, D48.1-) schistosomiasis (B65.-) trichinellosis (B75)
Excludes 1:	myopathy in cysticercosis (B69.81) myopathy in endocrine diseases (G73.7) myopathy in metabolic diseases (G73.7) myopathy in sarcoidosis (D86.87) myopathy in secondary syphilis (A51.49) myopathy in syphilis (late) (A52.78) myopathy in toxoplasmosis (B58.82) myopathy in tuberculosis (A18.09)

M63.8

Disorders of muscle in diseases classified elsewhere [+]

M63.80

Disorders of muscle in diseases classified elsewhere, unspecified site

M63.81

Disorders of muscle in diseases classified elsewhere, shoulder [+]

M63.82

Disorders of muscle in diseases classified elsewhere, upper arm [+]

M63.83

Disorders of muscle in diseases classified elsewhere, forearm [+]

M63.84

Disorders of muscle in diseases classified elsewhere, hand [+]

M63.85

Disorders of muscle in diseases classified elsewhere, thigh [+]

M63.86

Disorders of muscle in diseases classified elsewhere, lower leg [+]

M63.87

Disorders of muscle in diseases classified elsewhere, ankle and foot [+]

M63.88

Disorders of muscle in diseases classified elsewhere, other site

M63.89

Disorders of muscle in diseases classified elsewhere, multiple sites