ICD-10-CM · FY2027
Chapter 21: Factors influencing health status and contact with health services (Z00-Z99)
Chapter 21 of the ICD-10-CM Tabular List covers Z00-Z99 and contains 1,861 codes across 90 categories, of which 1,425 are billable for FY2027.
Note
- 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.
Z00-Z13 — Persons encountering health services for examinations
- Z00Encounter for general examination without complaint, suspected or reported diagnosis
- Z01Encounter for other special examination without complaint, suspected or reported diagnosis
- Z02Encounter for administrative examination
- Z03Encounter for medical observation for suspected diseases and conditions ruled out
- Z04Encounter for examination and observation for other reasons
- Z05Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out
- Z08Encounter for follow-up examination after completed treatment for malignant neoplasm
- Z09Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm
- Z11Encounter for screening for infectious and parasitic diseases
- Z12Encounter for screening for malignant neoplasms
- Z13Encounter for screening for other diseases and disorders
Z14-Z15 — Genetic carrier and genetic susceptibility to disease
Z16 — Resistance to antimicrobial drugs (Z16)
Z17 — Estrogen, and other hormones and factors receptor status (Z17)
Z18 — Retained foreign body fragments (Z18)
Z19 — Hormone sensitivity malignancy status (Z19)
Z20-Z29 — Persons with potential health hazards related to communicable diseases
Z30-Z39 — Persons encountering health services in circumstances related to reproduction
- Z30Encounter for contraceptive management
- Z31Encounter for procreative management
- Z32Encounter for pregnancy test and childbirth and childcare instruction
- Z33Pregnant state
- Z34Encounter for supervision of normal pregnancy
- Z36Encounter for antenatal screening of mother
- Z37Outcome of delivery
- Z38Liveborn infants according to place of birth and type of delivery
- Z39Encounter for maternal postpartum care and examination
- Z3AWeeks of gestation
Z40-Z53 — Encounters for other specific health care
- Z40Encounter for prophylactic surgery
- Z41Encounter for procedures for purposes other than remedying health state
- Z42Encounter for plastic and reconstructive surgery following medical procedure or healed injury
- Z43Encounter for attention to artificial openings
- Z44Encounter for fitting and adjustment of external prosthetic device
- Z45Encounter for adjustment and management of implanted device
- Z46Encounter for fitting and adjustment of other devices
- Z47Orthopedic aftercare
- Z48Encounter for other postprocedural aftercare
- Z49Encounter for care involving renal dialysis
- Z51Encounter for other aftercare and medical care
- Z52Donors of organs and tissues
- Z53Persons encountering health services for specific procedures and treatment, not carried out
Z55-Z65 — Persons with potential health hazards related to socioeconomic and psychosocial circumstances
- Z55Problems related to education and literacy
- Z56Problems related to employment and unemployment
- Z57Occupational exposure to risk factors
- Z58Problems related to physical environment
- Z59Problems related to housing and economic circumstances
- Z60Problems related to social environment
- Z62Problems related to upbringing
- Z63Other problems related to primary support group, including family circumstances
- Z64Problems related to certain psychosocial circumstances
- Z65Problems related to other psychosocial circumstances
Z66 — Do not resuscitate status (Z66)
Z67 — Blood type (Z67)
Z68 — Body mass index [BMI] (Z68)
Z69-Z76 — Persons encountering health services in other circumstances
- Z69Encounter for mental health services for victim and perpetrator of abuse
- Z70Counseling related to sexual attitude, behavior and orientation
- Z71Persons encountering health services for other counseling and medical advice, not elsewhere classified
- Z72Problems related to lifestyle
- Z73Problems related to life management difficulty
- Z74Problems related to care provider dependency
- Z75Problems related to medical facilities and other health care
- Z76Persons encountering health services in other circumstances
Z77-Z99 — Persons with potential health hazards related to family and personal history and certain conditions influencing health status
- Z77Other contact with and (suspected) exposures hazardous to health
- Z78Other specified health status
- Z79Long term (current) drug therapy
- Z80Family history of primary malignant neoplasm
- Z81Family history of mental and behavioral disorders
- Z82Family history of certain disabilities and chronic diseases (leading to disablement)
- Z83Family history of other specific disorders
- Z84Family history of other conditions
- Z85Personal history of malignant neoplasm
- Z86Personal history of certain other diseases
- Z87Personal history of other diseases and conditions
- Z88Allergy status to drugs, medicaments and biological substances
- Z89Acquired absence of limb
- Z90Acquired absence of organs, not elsewhere classified
- Z91Personal risk factors, not elsewhere classified
- Z92Personal history of medical treatment
- Z93Artificial opening status
- Z94Transplanted organ and tissue status
- Z95Presence of cardiac and vascular implants and grafts
- Z96Presence of other functional implants
- Z97Presence of other devices
- Z98Other postprocedural states
- Z99Dependence on enabling machines and devices, not elsewhere classified