H42

Billable

ChapterH00–H59

Rankcategory

Official Description

Glaucoma in diseases classified elsewhere

Metadata & Insights

•Billable/specific code (valid for reimbursement).
•Chapter 7: Diseases of the Eye and Adnexa (H00-H59).

CH7 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

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)

Instructional Notes

Excludes1(Not coded here. Use a different code.)

glaucoma (in) onchocerciasis (B73.02)
glaucoma (in) syphilis (A52.71)
glaucoma (in) tuberculous (A18.59)
neovascular secondary angle closure glaucoma (H40.84-)

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)
Rieger anomaly (Q13.81)
specified metabolic disorder (E70-E88)

Clinical Hierarchy

BillableHas subcodes

CH7Diseases of the eye and adnexa (H00-H59)

H40-H42Glaucoma (H40-H42)

H42Glaucoma in diseases classified elsewhereBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to H42:

chapterCH7

Diseases of the eye and adnexa (H00-H59)

View context instructions

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

Other Disorders of the Eye with MCC or Thrombolytic Agent

Other Disorders of the Eye without MCC

Cross Reference

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