Z83.2 — Family history of diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
Z83.2 is a billable, specific ICD-10-CM code for family history of diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
Excludes2 inherited from the categories above Z83.2
Also inherited, and the opposite of Excludes1: these conditions are not part of Z83.2, but a patient can have both, so you may code both.
Risk adjustment
Z83.2 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
Z83.2 is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A60256Billing and Coding: MolDX: Genetic Testing for Hereditary Thrombophilia
- A60272Billing and Coding: MolDX: Genetic Testing for Hereditary Thrombophilia
- A60294Billing and Coding: MolDX: Genetic Testing for Hereditary Thrombophilia
- A60308Billing and Coding: MolDX: Genetic Testing for Hereditary Thrombophilia
How Z83.2 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Z83.2.
- History›family›anemia
- History›family›disease or disorder›blood and blood-forming organs
- History›family›disease or disorder›hematological
- History›family›disease or disorder›immune mechanism
Code history
Z83.2 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share Z83. If Z83.2 is not quite right, the correct code is usually one of these.
- Z83.0Family history of human immunodeficiency virus [HIV] disease
- Z83.1Family history of other infectious and parasitic diseases
- Z83.3Family history of diabetes mellitus
- Z83.4Family history of other endocrine, nutritional and metabolic diseases
- Z83.5Family history of eye and ear disorders
- Z83.6Family history of other diseases of the respiratory system
- Z83.7Family history of diseases of the digestive system
Questions about Z83.2
- Is Z83.2 a billable ICD-10-CM code?
- Yes. Z83.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does Z83.2 sit in the tabular list?
- Factors influencing health status and contact with health services (Z00-Z99), in the block Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).