Z83
Family history of other specific disorders
Z83 is a non-billable ICD-10-CM code category for family history of other specific disorders. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are Z83.0 Family history of human immunodeficiency virus [HIV] disease, Z83.1 Family history of other infectious and parasitic diseases, Z83.2 Family history of diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism, Z83.3 Family history of diabetes mellitus and 4 more. Its coding notes include a Code also instruction and 1 Excludes2 entry.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
History codes can go on any record. The reason for the encounter is sequenced first, with history codes as additional diagnoses.
Code also
Two codes may be needed to describe the condition. This note gives no sequencing order.
Also from chapter/block level (1 note)
- any follow-up examination (Z08-Z09)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
- contact with and (suspected) exposure to communicable disease in the family (Z20.-)
Notes
Also from chapter/block level (3 notes)
- Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
- (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
- (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
More specific codes under Z83 8
- Z83.0Family history of human immunodeficiency virus [HIV] diseaseBillable
- Z83.1Family history of other infectious and parasitic diseasesBillable
- Z83.2Family history of diseases of the blood and blood-forming organs and certain disorders involving the immune mechanismBillable
- Z83.3Family history of diabetes mellitusBillable
- Z83.4Family history of other endocrine, nutritional and metabolic diseasesHeader
- Z83.5Family history of eye and ear disordersHeader
- Z83.6Family history of other diseases of the respiratory systemBillable
- Z83.7Family history of diseases of the digestive systemHeader