ICD-10-CM Diagnosis Code H40.849 - Neovascular secondary angle closure glaucoma, unspecified eye (original) (raw)

H40.849 is a billable diagnosis code used to specify a medical diagnosis of neovascular secondary angle closure glaucoma, unspecified eye. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2025 through September 30, 2026.

This code describes a circumstance which influences the patient's health status but not a current illness or injury. The code is unacceptable as a principal diagnosis.

Unspecified diagnosis codes like H40.849 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.