Question 1

What is ICD-10 code H53.419?

Accepted Answer

H53.419 is the ICD-10-CM diagnosis code for scotoma involving central area, unspecified eye. A blind spot or area of lost vision in the central part of the visual field (the area directly in the line of sight) when the affected eye is not specified. H53.419 sits in the ICD-10-CM chapter for diseases of the eye and adnexa (h00-h59), within the section covering visual disturbances and blindness (h53-h54).

H53.419 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.

If the eye is documented, use H53.411 (right) or H53.412 (left) instead of this unspecified code.

Question 2

Is H53.419 an HCC code?

Accepted Answer

No. H53.419 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 H53.419 billable?

Accepted Answer

Yes. H53.419 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. H53.419 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 H53.419?

Accepted Answer

H53.419 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 H53.419 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 H53.419?

Accepted Answer

If the eye is documented, use H53.411 (right) or H53.412 (left) instead of this unspecified code Document the size and location of the scotoma for clinical correlation

HCC Buddy Code Card

H53.419

Is H53.419 an HCC code?

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H53.419 ICD-10-CM Code: Scotoma involving central area, unspecified eye

HCC Buddy Code Card

H53.419

Is H53.419 an HCC code?

What This Code Means

Coding Tips

Child Codes

Code Hierarchy

Open H53.419 in the Interactive Encoder