Chapter 21

Z00–Z99: Factors Influencing Health Status and Contact with Health Services

Factors Influencing Health Status and Contact with Health Services diagnostic classification updated for 2026.

Internal Codes
  • Z79.631

    Long term (current) use of antimetabolite agent

  • Z79.632

    Long term (current) use of antitumor antibiotic

  • Z79.633

    Long term (current) use of mitotic inhibitor

  • Z79.634

    Long term (current) use of topoisomerase inhibitor

  • Z79.64

    Long term (current) use of myelosuppressive agent

  • Z79.69

    Long term (current) use of other immunomodulators and immunosuppressants

  • Z79.810

    Long term (current) use of selective estrogen receptor modulators (SERMs)

  • Z79.811

    Long term (current) use of aromatase inhibitors

  • Z79.818

    Long term (current) use of other agents affecting estrogen receptors and estrogen levels

  • Z79.82

    Long term (current) use of aspirin

  • Z79.83

    Long term (current) use of bisphosphonates

  • Z79.84

    Long term (current) use of oral hypoglycemic drugs

  • Z79.85

    Long-term (current) use of injectable non-insulin antidiabetic drugs

  • Z79.890

    Hormone replacement therapy

  • Z79.891

    Long term (current) use of opiate analgesic

  • Z79.899

    Other long term (current) drug therapy

  • Z80.0

    Family history of malignant neoplasm of digestive organs

  • Z80.1

    Family history of malignant neoplasm of trachea, bronchus and lung

  • Z80.2

    Family history of malignant neoplasm of other respiratory and intrathoracic organs

  • Z80.3

    Family history of malignant neoplasm of breast

  • Z80.41

    Family history of malignant neoplasm of ovary

  • Z80.42

    Family history of malignant neoplasm of prostate

  • Z80.43

    Family history of malignant neoplasm of testis

  • Z80.44

    Family history of malignant neoplasm of fallopian tube(s)

  • Z80.49

    Family history of malignant neoplasm of other genital organs

  • Z80.51

    Family history of malignant neoplasm of kidney

  • Z80.52

    Family history of malignant neoplasm of bladder

  • Z80.59

    Family history of malignant neoplasm of other urinary tract organ

  • Z80.6

    Family history of leukemia

  • Z80.7

    Family history of other malignant neoplasms of lymphoid, hematopoietic and related tissues

  • Z80.8

    Family history of malignant neoplasm of other organs or systems

  • Z80.9

    Family history of malignant neoplasm, unspecified

  • Z81.0

    Family history of intellectual disabilities

  • Z81.1

    Family history of alcohol abuse and dependence

  • Z81.2

    Family history of tobacco abuse and dependence

  • Z81.3

    Family history of other psychoactive substance abuse and dependence

  • Z81.4

    Family history of other substance abuse and dependence

  • Z81.8

    Family history of other mental and behavioral disorders

  • Z82.0

    Family history of epilepsy and other diseases of the nervous system

  • Z82.1

    Family history of blindness and visual loss

  • Z82.2

    Family history of deafness and hearing loss

  • Z82.3

    Family history of stroke

  • Z82.41

    Family history of sudden cardiac death

  • Z82.49

    Family history of ischemic heart disease and other diseases of the circulatory system

  • Z82.5

    Family history of asthma and other chronic lower respiratory diseases

  • Z82.61

    Family history of arthritis

  • Z82.62

    Family history of osteoporosis

  • Z82.69

    Family history of other diseases of the musculoskeletal system and connective tissue

  • Z82.71

    Family history of polycystic kidney

  • Z82.79

    Family history of other congenital malformations, deformations and chromosomal abnormalities

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