ICD-10 H05.00
Billable / SpecificUnspecified acute inflammation of orbit
About ICD-10-CM H05.00
ICD-10-CM code H05.00 represents Unspecified acute inflammation of orbit. This is a billable/specific code in the Eye and Adnexa chapter (block H05). The 2026 edition of ICD-10-CM H05.00 became effective on October 1, 2025.
Medicare LCD Coverage for H05.00
Local Coverage Determinations (LCDs) from CMS MACs that list H05.00 as a covered diagnosis.
Showing top 10 of 20 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing H05.00.
1 Cigna
5 Medicare
1 Aetna
CPT Codes Commonly Billed with H05.00
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 H05.00 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 |
|---|---|---|
| H05.00 | 37600 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To H05.00
Other codes in section H00-H05 (Disorders of eyelid, lacrimal system and orbit).
ICD-10 H05.00, Billing FAQ
Is ICD-10 code H05.00 billable? +
Yes, H05.00 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does H05.00 map to? +
Per CMS GEMs, H05.00 maps to ICD-9 codes: 37600. 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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