H31.303
BillableUnspecified choroidal hemorrhage, bilateral
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is H31.303 an HCC code?
No. H31.303 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
H31.303 is the ICD-10-CM diagnosis code for unspecified choroidal hemorrhage, bilateral. Bleeding in the choroid layer (the blood vessel layer beneath the retina) affecting both eyes, where the specific cause or type of hemorrhage has not been determined. This condition can affect vision and requires evaluation to identify the underlying cause. H31.303 sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering disorders of choroid and retina (h30-h36).
H31.303 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Verify documentation specifies 'bilateral' involvement before assigning this code; if only one eye is affected, use H31.301 (right eye) or H31.302 (left eye) instead.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for H31.303 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Verify documentation specifies 'bilateral' involvement before assigning this code; if only one eye is affected, use H31.301 (right eye) or H31.302 (left eye) instead
- •Query the provider if the choroidal hemorrhage type is documented (such as expulsive, suprachoroidal, or secondary to trauma) as more specific codes may be appropriate