ICD-10 H53.421
Billable / SpecificScotoma of blind spot area, right eye
About ICD-10-CM H53.421
ICD-10-CM code H53.421 represents Scotoma of blind spot area, right eye. This is a billable/specific code in the Eye and Adnexa chapter (block H53). The 2026 edition of ICD-10-CM H53.421 became effective on October 1, 2025.
Medicare LCD Coverage for H53.421
Local Coverage Determinations (LCDs) from CMS MACs that list H53.421 as a covered diagnosis.
Showing top 10 of 150 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing H53.421.
1 Cigna
5 Medicare
CPT Codes Commonly Billed with H53.421
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert H53.421 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| H53.421 | 36842 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To H53.421
Other codes in section H53-H54 (Visual disturbances and blindness).
ICD-10 H53.421, Billing FAQ
Is ICD-10 code H53.421 billable? +
Yes, H53.421 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does H53.421 map to? +
Per CMS GEMs, H53.421 maps to ICD-9 codes: 36842. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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