ICD-10 Z45.321
Billable / SpecificEncounter for adjustment and management of cochlear device
About ICD-10-CM Z45.321
ICD-10-CM code Z45.321 represents Encounter for adjustment and management of cochlear device. This is a billable/specific code in the Factors Influencing Health Status chapter (block Z45). The 2026 edition of ICD-10-CM Z45.321 became effective on October 1, 2025.
Medicare LCD Coverage for Z45.321
Local Coverage Determinations (LCDs) from CMS MACs that list Z45.321 as a covered diagnosis.
Showing top 10 of 69 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing Z45.321.
3 Medicare
CPT Codes Commonly Billed with Z45.321
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 Z45.321 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 |
|---|---|---|
| Z45.321 | V5309 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To Z45.321
Other codes in section Z40-Z53 (Encounters for other specific health care).
ICD-10 Z45.321, Billing FAQ
Is ICD-10 code Z45.321 billable? +
Yes, Z45.321 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does Z45.321 map to? +
Per CMS GEMs, Z45.321 maps to ICD-9 codes: V5309. 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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