ICD-10 Z33.1
Billable / SpecificPregnant state, incidental
About ICD-10-CM Z33.1
ICD-10-CM code Z33.1 represents Pregnant state, incidental. This is a billable/specific code in the Factors Influencing Health Status chapter (block Z33). The 2026 edition of ICD-10-CM Z33.1 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under Z33.1. Per CMS ICD-10-CM Tabular 2026.
- Pregnancy NOS
- Pregnant state NOS
Type 1 Excludes
Pure excludes, these codes can never be coded together with Z33.1. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- complications of pregnancy (O00-O9A)
- pregnant state, gestational carrier (Z33.3)
Medicare LCD Coverage for Z33.1
Local Coverage Determinations (LCDs) from CMS MACs that list Z33.1 as a covered diagnosis.
Showing top 10 of 569 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing Z33.1.
2 Cigna
5 Medicare
CPT Codes Commonly Billed with Z33.1
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 Z33.1 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 |
|---|---|---|
| Z33.1 | V222 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To Z33.1
Other codes in section Z30-Z39 (Persons encountering health services in circumstances related to reproduction).
ICD-10 Z33.1, Billing FAQ
Is ICD-10 code Z33.1 billable? +
Yes, Z33.1 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 Z33.1? +
ICD-10 Z33.1 includes: Pregnancy NOS; Pregnant state NOS.
What codes are Type 1 Excludes for Z33.1? +
Type 1 Excludes (never code together with Z33.1): complications of pregnancy (O00-O9A); pregnant state, gestational carrier (Z33.3)
What ICD-9 codes does Z33.1 map to? +
Per CMS GEMs, Z33.1 maps to ICD-9 codes: V222. 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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