ICD-10 Z36
Non-Billable HeaderEncounter for antenatal screening of mother
About ICD-10-CM Z36
ICD-10-CM code Z36 represents Encounter for antenatal screening of mother. This is a non-billable header code in the Factors Influencing Health Status chapter (block Z36). The 2026 edition of ICD-10-CM Z36 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 1 Excludes
Pure excludes, these codes can never be coded together with Z36. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- diagnostic examination- code to sign or symptom
- encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
- suspected fetal condition affecting management of pregnancy - code to condition in Chapter 15
Type 2 Excludes
Not included here, the excluded code is not part of Z36, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- abnormal findings on antenatal screening of mother (O28.-)
- genetic counseling and testing (Z31.43-, Z31.5)
- routine prenatal care (Z34)
Includes
- Encounter for placental sample (taken vaginally)
- Screening is the testing for disease or disease precursors in asymptomatic individuals so that early detection and treatment can be provided for those who test positive for the disease.
Medicare LCD Coverage for Z36
Local Coverage Determinations (LCDs) from CMS MACs that list Z36 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 Z36.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but Z36 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with Z36
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 Z36 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 |
|---|---|---|
| Z36 | V289 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To Z36
Other codes in section Z30-Z39 (Persons encountering health services in circumstances related to reproduction).
ICD-10 Z36, Billing FAQ
Is ICD-10 code Z36 billable? +
No, Z36 is a non-billable header code. Use a more specific child code from block Z36 when submitting claims.
What codes are Type 1 Excludes for Z36? +
Type 1 Excludes (never code together with Z36): diagnostic examination- code to sign or symptom; encounter for suspected maternal and fetal conditions ruled out (Z03.7-); suspected fetal condition affecting management of pregnancy - code to condition in Chapter 15
What codes are Type 2 Excludes for Z36? +
Type 2 Excludes (may be coded together when both conditions exist): abnormal findings on antenatal screening of mother (O28.-); genetic counseling and testing (Z31.43-, Z31.5); routine prenatal care (Z34)
What ICD-9 codes does Z36 map to? +
Per CMS GEMs, Z36 maps to ICD-9 codes: V289. 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 June 1, 2026.
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