Question 1

What is ICD-10 code H47.311?

Accepted Answer

H47.311 is the ICD-10-CM diagnosis code for coloboma of optic disc, right eye. A congenital defect where part of the optic disc is missing or underdeveloped in the right eye, which may affect vision. H47.311 sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering disorders of optic nerve and visual pathways (h46-h47).

H47.311 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.

Coloboma is typically a congenital condition; verify it is not acquired before coding.

Question 2

Is H47.311 an HCC code?

Accepted Answer

No. H47.311 is a billable ICD-10-CM code but does not map to any payment HCC category under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can still be reported on Medicare Advantage encounter data submissions, but it does not contribute to the beneficiary's Risk Adjustment Factor (RAF) score and therefore does not affect the risk-adjusted capitation payment to the plan. V28 reached 100% phase-in for payment year 2026.

Question 3

Is H47.311 billable?

Accepted Answer

Yes. H47.311 is a billable ICD-10-CM code that can be reported on professional and institutional claims as a primary or secondary diagnosis when the provider documentation supports the specific condition described. Billable codes in ICD-10-CM are coded to the highest level of specificity available for the documented diagnosis. H47.311 is current for fiscal year 2026 and remains in the active CMS ICD-10-CM code set published by the National Center for Health Statistics.

Question 4

What is the V28 vs V24 difference for H47.311?

Accepted Answer

H47.311 does not map to a payment HCC under either the CMS-HCC V28 risk adjustment model or the older V24 model. V28 reached 100% phase-in for payment year 2026, replacing V24 which was used during the PY2024–PY2025 transition. Because neither model rewards H47.311 with a risk adjustment factor, it contributes zero to a Medicare Advantage beneficiary's RAF score in either version. Coders should check whether provider documentation supports a more specific child code that does map to a payment HCC.

Question 5

What should coders know when reporting H47.311?

Accepted Answer

Coloboma is typically a congenital condition; verify it is not acquired before coding Ensure documentation specifies right eye; bilateral cases require H47.313

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H47.311

Is H47.311 an HCC code?

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Open H47.311 in the Interactive Encoder

H47.311 ICD-10-CM Code: Coloboma of optic disc, right eye

HCC Buddy Code Card

H47.311

Is H47.311 an HCC code?

What This Code Means

Coding Tips

Child Codes

Code Hierarchy

Open H47.311 in the Interactive Encoder