ICD-10-CM 2026 · Effective October 1, 2025

ICD-10 Z34.90

Billable / Specific

Encounter for supervision of normal pregnancy, unspecified, unspecified trimester

Z34
Block
0
Synonyms
542
LCDs
5
Payer Policies
2
Linked CPTs

About ICD-10-CM Z34.90

ICD-10-CM code Z34.90 represents Encounter for supervision of normal pregnancy, unspecified, unspecified trimester. This is a billable/specific code in the Factors Influencing Health Status chapter (block Z34). The 2026 edition of ICD-10-CM Z34.90 became effective on October 1, 2025.

Medicare LCD Coverage for Z34.90

Local Coverage Determinations (LCDs) from CMS MACs that list Z34.90 as a covered diagnosis.

542 LCDs

Showing top 10 of 542 total . Click a CPT for full coverage scope.

CMS LCD: Billing and Coding: Zika Virus Testing by PCR and ELISA Methods
Article ID: 55326, Effective: 2025-11-06 00:00:00, 128 covered, 0 non-covered
CPT 87801 →
CMS LCD: Billing and Coding: Zika Virus Testing by PCR and ELISA Methods
Article ID: 55326, Effective: 2025-11-06 00:00:00, 128 covered, 0 non-covered
CPT 87798 →
CMS LCD: Billing and Coding: Zika Virus Testing by PCR and ELISA Methods
Article ID: 55326, Effective: 2025-11-06 00:00:00, 128 covered, 0 non-covered
CPT 86794 →
CMS LCD: Billing and Coding: Zika Virus Testing by PCR and ELISA Methods
Article ID: 55326, Effective: 2025-11-06 00:00:00, 128 covered, 0 non-covered
CPT 87662 →
CMS LCD: Billing and Coding: Zika Virus Testing by PCR and ELISA Methods
Article ID: 55326, Effective: 2025-11-06 00:00:00, 128 covered, 0 non-covered
CPT 86790 →
CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 87555 →
CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 87653 →
CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 87486 →
CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 87626 →
CMS LCD: Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Article ID: 58761, Effective: 2026-03-12 00:00:00, 851 covered, 0 non-covered
CPT 0109U →

Commercial Payer Coverage

Coverage policies from major commercial payers referencing Z34.90.

5 policies

5 Medicare

Billing and Coding: Zika Virus Testing by PCR and ELISA Methods
Policy ID: ART-55326
Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Policy ID: ART-58710
Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Policy ID: ART-58720
Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Policy ID: ART-58747
Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Policy ID: ART-58761

CPT Codes Commonly Billed with Z34.90

Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.

2 linkages
  • 76801 OB ultrasound first trimester — pregnancy supervision, high-risk pregnancy, abnormal prenatal screening, prenatal screening, spontaneous abortion OB/GYN
  • 76805 OB ultrasound after first trimester — same as 76801 plus SGA, polyhydramnios OB/GYN

Convert Z34.90 to ICD-9-CM

Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.

ICD-10ICD-9Mapping Flags
Z34.90 V221 10000

Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).

Codes Adjacent To Z34.90

Other codes in section Z30-Z39 (Persons encountering health services in circumstances related to reproduction).

ICD-10 Z34.90, Billing FAQ

Is ICD-10 code Z34.90 billable? +

Yes, Z34.90 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.

What CPT codes are commonly billed with Z34.90? +

Procedures frequently paired with Z34.90 include: 76801, 76805.

What ICD-9 codes does Z34.90 map to? +

Per CMS GEMs, Z34.90 maps to ICD-9 codes: V221. 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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