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ICD-10-CM 2027

ICD-10 code for ocular hypertension

H40.05

Ocular hypertension

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) › ocular”. Page updated September 29, 2026.

About coding ocular hypertension

The ICD-10-CM code for ocular hypertension is H40.05 (Ocular hypertension).

Within H40.0 (glaucoma suspect), H40.05 is specifically for ocular hypertension. Related codes cover Preglaucoma, unspecified (H40.00), open angle with borderline findings, low risk (H40.01), open angle with borderline findings, high risk (H40.02), anatomical narrow angle (H40.03), steroid responder (H40.04) and primary angle closure without glaucoma damage (H40.06).

To report this condition, pick the subcode that matches the documentation: H40.051 (right eye), H40.052 (left eye), H40.053 (bilateral) and H40.059 (unspecified eye).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about ocular hypertension ICD-10 codes

What is the ICD-10 code for ocular hypertension?

H40.05 — Ocular hypertension (a header code; report a more specific subcode).

Is H40.05 billable?

No. H40.05 is a header code. Report one of its more specific subcodes instead.