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Z15

⚠ Non-billable (Header)

Genetic susceptibility to disease

Factors influencing health status and contact with health services (Z00-Z99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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✅ Includes

  • • confirmed abnormal gene

📋 Code Instructions

  • • code, if applicable, for any associated family history of the disease (Z80-Z84)

❌ Excludes1

direct

Cannot be coded with Z15

  • • chromosomal anomalies (Q90-Q99)

Child Codes (5)

Z15.0Genetic susceptibility to malignant neoplasmZ15.1Genetic susceptibility to epilepsy and neurodevelopmental disordersZ15.2Genetic susceptibility to obesityZ15.3Genetic susceptibility to kidney diseaseZ15.8Genetic susceptibility to other disease

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Code Information

CodeZ15
BillableNo — Header code
CategoryFactors influencing health status and contact with health services (Z00-Z99)
Excludes11 rule(s)
Excludes20 note(s)
Child codes5

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)