Z83.2 — Family history of diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
Is Z83.2 billable?
Yes — Z83.2 is billable for FY2027. Z83.2 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Z83.2 may be submitted for encounters from October 1, 2026 through September 30, 2027.
Z83.2 at a glance
| Code | Z83.2 |
|---|---|
| Description | Family history of diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to Z83.2?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name Z83.2 directly.
CMS will reject this code as the principal diagnosis on an inpatient claim. It describes something other than the condition chiefly responsible for the admission.
Which MS-DRGs does Z83.2 group to?
Z83.2 sits in MDC 23 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 951Other Factors Influencing Health Statusmedical
How is Z83.2 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to Z83.2. They show the wording a clinician may have documented, which often differs from the Tabular description.
- 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
Inclusion terms
Alternative wording in documentation that is classified to Z83.2.
- Conditions classifiable to D50-D89
Excludes2 — not included here — inherited from Z83
The conditions below are not part of Z83.2, but a patient may have both at the same time. When documentation supports it, Z83.2 and the excluded code may both be reported.
- contact with and (suspected) exposure to communicable disease in the family (Z20.-)
Code also — inherited from Z77-Z99
Two codes may be needed to describe the condition fully. Whether Z83.2 is sequenced first depends on the reason for the encounter.
- any follow-up examination (Z08-Z09)
How long has Z83.2 existed?
Z83.2 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the Z83 family? (7)
- 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 diseasesnot billable
- Z83.5Family history of eye and ear disordersnot billable
- Z83.6Family history of other diseases of the respiratory system
- Z83.7Family history of diseases of the digestive systemnot billable