Chapter VII
Diseases of the eye and adnexa
(H00-H59)

Glaucoma
(H40-H42)

H40 Glaucoma
Excludes: absolute glaucoma ( H44.5 )
congenital glaucoma ( Q15.0 )
traumatic glaucoma due to birth injury ( P15.3 )
H40.0 Glaucoma suspect
Ocular hypertension
H40.1 Primary open-angle glaucoma
Glaucoma (primary)(residual stage):
· capsular with pseudoexfoliation of lens
· chronic simple
· low-tension
· pigmentary
H40.2 Primary angle-closure glaucoma
Angle-closure glaucoma (primary)(residual stage):
· acute
· chronic
· intermittent
H40.3 Glaucoma secondary to eye trauma
Use additional code, if desired, to identify cause.
H40.4 Glaucoma secondary to eye inflammation
Use additional code, if desired, to identify cause.
H40.5 Glaucoma secondary to other eye disorders
Use additional code, if desired, to identify cause.
H40.6 Glaucoma secondary to drugs
Use additional external cause code (Chapter XX), if desired, to identify drug.
H40.8 Other glaucoma
H40.9 Glaucoma, unspecified

H42* Glaucoma in diseases classified elsewhere
H42.0* Glaucoma in endocrine, nutritional and metabolic diseases
Glaucoma in:
· amyloidosis ( E85.-+ )
· Lowe's syndrome ( E72.0+ )
H42.8* Glaucoma in other diseases classified elsewhere
Glaucoma in onchocerciasis ( B73+ )