ICD-10 Guide

H40.21

Name: ICD-10-CM Medical Diagnosis Codes
Creator: Centers for Medicare & Medicaid Services
License: https://www.cms.gov/medicare/coding/icd10

Non-billable

Acute angle-closure glaucoma

BILLABLE STATUSNo

IMPLEMENTATION DATEOctober 1, 2015

LAST UPDATED08/26/2025

Code Description

ICD-10 H40.21 is a used to indicate a diagnosis of acute angle-closure glaucoma.

Key Diagnostic Point:

Acute angle-closure glaucoma

H40.21

Code Description

Key Diagnostic Point:

Related ICD-10 Codes

H40.21

Code Description

Key Diagnostic Point:

Related ICD-10 Codes