ICD-10 Z90.09
Billable / SpecificAcquired absence of other part of head and neck
About ICD-10-CM Z90.09
ICD-10-CM code Z90.09 represents Acquired absence of other part of head and neck. This is a billable/specific code in the Factors Influencing Health Status chapter (block Z90). The 2026 edition of ICD-10-CM Z90.09 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under Z90.09. Per CMS ICD-10-CM Tabular 2026.
- Acquired absence of nose
Type 2 Excludes
Not included here, the excluded code is not part of Z90.09, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- teeth (K08.1)
Medicare LCD Coverage for Z90.09
Local Coverage Determinations (LCDs) from CMS MACs that list Z90.09 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing Z90.09.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but Z90.09 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with Z90.09
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 Z90.09 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 |
|---|---|---|
| Z90.09 | V4579 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To Z90.09
Other codes in section Z77-Z99 (Persons with potential health hazards related to family and personal history and certain conditions influencing health status).
ICD-10 Z90.09, Billing FAQ
Is ICD-10 code Z90.09 billable? +
Yes, Z90.09 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to Z90.09? +
ICD-10 Z90.09 includes: Acquired absence of nose.
What codes are Type 2 Excludes for Z90.09? +
Type 2 Excludes (may be coded together when both conditions exist): teeth (K08.1)
What ICD-9 codes does Z90.09 map to? +
Per CMS GEMs, Z90.09 maps to ICD-9 codes: V4579. 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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