Is H34.03 a billable ICD-10-CM code?

Yes. H34.03 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does H34.03 sit in the tabular list?

Diseases of the eye and adnexa (H00-H59), in the block Disorders of choroid and retina (H30-H36).

What cannot be coded together with H34.03?

H34.03 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above H34.03 (H34) and apply to it just the same.

H34.03

H34.03 — Transient retinal artery occlusion, bilateral

Billable / specific codeICD-10-CMbilateral

H34.03 is a billable, specific ICD-10-CM code for transient retinal artery occlusion, bilateral. It is valid for submission on a claim.

Excludes1 inherited from the categories above H34.03

These are not written on H34.03, but they bind it: a note on a category applies to every code beneath it. Billing H34.03 with anything listed here is a denial.

Written on H34 — Retinal vascular occlusions

amaurosis fugax (G45.3)

Risk adjustment

H34.03 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

H34.03 is named in 39 Medicare coverage policies — 39 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A52992Billing and Coding: Non-Invasive Cerebrovascular Arterial Studies
A53060Billing and Coding: Ophthalmology: Extended Ophthalmoscopy and Fundus Photography
A56505Billing and Coding: Transesophageal Echocardiography (TEE)
A56537Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)

Code history

H34.03 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share H34.0. If H34.03 is not quite right, the correct code is usually one of these.

Questions about H34.03

Is H34.03 a billable ICD-10-CM code?: Yes. H34.03 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does H34.03 sit in the tabular list?: Diseases of the eye and adnexa (H00-H59), in the block Disorders of choroid and retina (H30-H36).
What cannot be coded together with H34.03?: H34.03 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above H34.03 (H34) and apply to it just the same.