Medicare Informatics - Medicare Informatics & Data Analysis in Cloud

Diseases of the eye and adnexa (H00-H59)

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

Excludes 2:: certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
endocrine, nutritional and metabolic diseases (E00-E88)
injury (trauma) of eye and orbit (S05.-)
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)
syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)

Glaucoma (H40-H42)

H40

Glaucoma [+]

Excludes 1:

absolute glaucoma (H44.51-)
congenital glaucoma (Q15.0)
traumatic glaucoma due to birth injury (P15.3)

H40.0

Glaucoma suspect [+]

H40.00

Preglaucoma, unspecified [+]

H40.01

Open angle with borderline findings, low risk [+]
Open angle, low risk

H40.02

Open angle with borderline findings, high risk [+]
Open angle, high risk

H40.03

Anatomical narrow angle [+]
Primary angle closure suspect

H40.04

Steroid responder [+]

H40.05

Ocular hypertension [+]

H40.06

Primary angle closure without glaucoma damage [+]

H40.1

Open-angle glaucoma [+]

H40.10

Unspecified open-angle glaucoma

One of the following 7th characters is to be assigned to code H40.10 to designate the stage of glaucoma
0 - stage unspecified
1 - mild stage
2 - moderate stage
3 - severe stage
4 - indeterminate stage

H40.11

Primary open-angle glaucoma [+]
Chronic simple glaucoma

One of the following 7th characters is to be assigned to each code in subcategory H40.11 to designate the stage of glaucoma
0 - stage unspecified
1 - mild stage
2 - moderate stage
3 - severe stage
4 - indeterminate stage

H40.12

Low-tension glaucoma [+]

One of the following 7th characters is to be assigned to each code in subcategory H40.12 to designate the stage of glaucoma
0 - stage unspecified
1 - mild stage
2 - moderate stage
3 - severe stage
4 - indeterminate stage

H40.13

Pigmentary glaucoma [+]

One of the following 7th characters is to be assigned to each code in subcategory H40.13 to designate the stage of glaucoma
0 - stage unspecified
1 - mild stage
2 - moderate stage
3 - severe stage
4 - indeterminate stage

H40.14

Capsular glaucoma with pseudoexfoliation of lens [+]

One of the following 7th characters is to be assigned to each code in subcategory H40.14 to designate the stage of glaucoma
0 - stage unspecified
1 - mild stage
2 - moderate stage
3 - severe stage
4 - indeterminate stage

H40.15

Residual stage of open-angle glaucoma [+]

H40.2

Primary angle-closure glaucoma [+]

Excludes 1:

aqueous misdirection (H40.83-)
malignant glaucoma (H40.83-)

H40.20

Unspecified primary angle-closure glaucoma

One of the following 7th characters is to be assigned to code H40.20 to designate the stage of glaucoma
0 - stage unspecified
1 - mild stage
2 - moderate stage
3 - severe stage
4 - indeterminate stage

H40.21

Acute angle-closure glaucoma [+]
Acute angle-closure glaucoma attack
Acute angle-closure glaucoma crisis

H40.22

Chronic angle-closure glaucoma [+]
Chronic primary angle closure glaucoma

One of the following 7th characters is to be assigned to each code in subcategory H40.22 to designate the stage of glaucoma
0 - stage unspecified
1 - mild stage
2 - moderate stage
3 - severe stage
4 - indeterminate stage

H40.23

Intermittent angle-closure glaucoma [+]

H40.24

Residual stage of angle-closure glaucoma [+]

H40.3

Glaucoma secondary to eye trauma [+]

Code also	underlying condition
One of the following 7th characters is to be assigned to each code in subcategory H40.3 to designate the stage of glaucoma 0 - stage unspecified 1 - mild stage 2 - moderate stage 3 - severe stage 4 - indeterminate stage

H40.4

Glaucoma secondary to eye inflammation [+]

Code also	underlying condition
One of the following 7th characters is to be assigned to each code in subcategory H40.4 to designate the stage of glaucoma 0 - stage unspecified 1 - mild stage 2 - moderate stage 3 - severe stage 4 - indeterminate stage

H40.5

Glaucoma secondary to other eye disorders [+]

Code also	underlying eye disorder
One of the following 7th characters is to be assigned to each code in subcategory H40.5 to designate the stage of glaucoma 0 - stage unspecified 1 - mild stage 2 - moderate stage 3 - severe stage 4 - indeterminate stage

H40.6

Glaucoma secondary to drugs [+]

Use additional	code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
One of the following 7th characters is to be assigned to each code in subcategory H40.6 to designate the stage of glaucoma 0 - stage unspecified 1 - mild stage 2 - moderate stage 3 - severe stage 4 - indeterminate stage

H40.8

Other glaucoma [+]

H40.81

Glaucoma with increased episcleral venous pressure [+]

H40.82

Hypersecretion glaucoma [+]

H40.83

Aqueous misdirection [+]
Malignant glaucoma

H40.89

Other specified glaucoma

H40.9

Unspecified glaucoma

H42

Glaucoma in diseases classified elsewhere

Code first	underlying condition, such as: amyloidosis (E85.-) aniridia (Q13.1) glaucoma (in) diabetes mellitus (E08.39, E09.39, E10.39, E11.39, E13.39) Lowe's syndrome (E72.03) Reiger's anomaly (Q13.81) specified metabolic disorder (E70-E88)
Excludes 1:	glaucoma (in) onchocerciasis (B73.02) glaucoma (in) syphilis (A52.71) glaucoma (in) tuberculous (A18.59)