ICD-10 Z13.0
Billable / SpecificEncounter for screening for diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
About ICD-10-CM Z13.0
ICD-10-CM code Z13.0 represents Encounter for screening for diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism. This is a billable/specific code in the Factors Influencing Health Status chapter (block Z13). The 2026 edition of ICD-10-CM Z13.0 became effective on October 1, 2025.
Medicare LCD Coverage for Z13.0
Local Coverage Determinations (LCDs) from CMS MACs that list Z13.0 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 Z13.0.
1 Cigna
1 Aetna
CPT Codes Commonly Billed with Z13.0
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 85025 CBC with differential — anemia, iron deficiency, fatigue, thrombocytopenia, neutropenia, leukemia, lymphoma, abnormal labs, routine exam, screening, fever, elevated WBC Laboratory
Convert Z13.0 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 |
|---|---|---|
| Z13.0 | V782 | 10000 |
| Z13.0 | V783 | 10000 |
| Z13.0 | V789 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To Z13.0
Other codes in section Z00-Z13 (Persons encountering health services for examinations).
ICD-10 Z13.0, Billing FAQ
Is ICD-10 code Z13.0 billable? +
Yes, Z13.0 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 Z13.0? +
Procedures frequently paired with Z13.0 include: 85025.
What ICD-9 codes does Z13.0 map to? +
Per CMS GEMs, Z13.0 maps to ICD-9 codes: V782, V783, V789. 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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