ICD-10 Z22
Non-Billable HeaderCarrier of infectious disease
About ICD-10-CM Z22
ICD-10-CM code Z22 represents Carrier of infectious disease. This is a non-billable header code in the Factors Influencing Health Status chapter (block Z22). The 2026 edition of ICD-10-CM Z22 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 2 Excludes
Not included here, the excluded code is not part of Z22, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- carrier of viral hepatitis (B18.-)
Includes
- colonization status
- suspected carrier
Medicare LCD Coverage for Z22
Local Coverage Determinations (LCDs) from CMS MACs that list Z22 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 Z22.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but Z22 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with Z22
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.
Codes Adjacent To Z22
Other codes in section Z20-Z29 (Persons with potential health hazards related to communicable diseases).
ICD-10 Z22, Billing FAQ
Is ICD-10 code Z22 billable? +
No, Z22 is a non-billable header code. Use a more specific child code from block Z22 when submitting claims.
What codes are Type 2 Excludes for Z22? +
Type 2 Excludes (may be coded together when both conditions exist): carrier of viral hepatitis (B18.-)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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