ICD-10 H21.01
Billable / SpecificHyphema, right eye
About ICD-10-CM H21.01
ICD-10-CM code H21.01 represents Hyphema, right eye. This is a billable/specific code in the Eye and Adnexa chapter (block H21). The 2026 edition of ICD-10-CM H21.01 became effective on October 1, 2025.
Medicare LCD Coverage for H21.01
Local Coverage Determinations (LCDs) from CMS MACs that list H21.01 as a covered diagnosis.
Showing top 10 of 22 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing H21.01.
5 Medicare
CPT Codes Commonly Billed with H21.01
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 H21.01 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 |
|---|---|---|
| H21.01 | 36441 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To H21.01
Other codes in section H15-H22 (Disorders of sclera, cornea, iris and ciliary body).
ICD-10 H21.01, Billing FAQ
Is ICD-10 code H21.01 billable? +
Yes, H21.01 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does H21.01 map to? +
Per CMS GEMs, H21.01 maps to ICD-9 codes: 36441. Useful for legacy data review and historical claim analysis.
Get the full PayerReady toolkit
Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.
Start free →Run this code through our claim audit tool
Check NCCI bundling, MUE limits, and modifier logic before submission.
Try the auditor →Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team