ICD-10 Chapter XXI: Factors influencing health status and contact with health services

(Z00-Z13) Persons encountering health services for examination and investigation

 * General examination and investigation of persons without complaint and reported diagnosis
 * Other special examinations and investigations of persons without complaint or reported diagnosis
 * Examination and encounter for administrative purposes
 * Medical observation and evaluation for suspected diseases and conditions
 * Examination and observation for other reasons
 * Follow-up examination after treatment for malignant neoplasms
 * Follow-up examination after treatment for conditions other than malignant neoplasms
 * Routine general health check-up of defined subpopulation
 * Special screening examination for infectious and parasitic diseases
 * Special screening examination for neoplasms
 * Special screening examination for other diseases and disorders

(Z20-Z29) Persons with potential health hazards related to communicable diseases

 * Contact with and exposure to communicable diseases
 * Asymptomatic human immunodeficiency virus (HIV) infection status
 * Carrier of infectious disease
 * Need for immunization against single bacterial diseases
 * Need for immunization against certain single viral diseases
 * Need for immunization against other single viral diseases
 * Need for immunization against other single infectious diseases
 * Need for immunization against combinations of infectious diseases
 * Immunization not carried out
 * Need for other prophylactic measures

(Z30-Z39) Persons encountering health services in circumstances related to reproduction

 * Contraceptive management
 * Procreative management
 * Pregnancy examination and test
 * Pregnant state, incidental
 * Supervision of normal pregnancy
 * Supervision of high-risk pregnancy
 * Antenatal screening
 * Outcome of delivery
 * Liveborn infants according to place of birth
 * Postpartum care and examination

(Z40-Z54) Persons encountering health services for specific procedures and health care

 * Prophylactic surgery
 * Procedures for purposes other than remedying health state
 * Follow-up care involving plastic surgery
 * Attention to artificial openings
 * Fitting and adjustment of external prosthetic device
 * Adjustment and management of implanted device
 * Fitting and adjustment of other devices
 * Other orthopaedic follow-up care
 * Other surgical follow-up care
 * Care involving dialysis
 * Care involving use of rehabilitation procedures
 * Other medical care
 * Donors of organs and tissues
 * Persons encountering health services for specific procedures, not carried out
 * Convalescence

(Z55-Z65) Persons with potential health hazards related to socioeconomic and psychosocial circumstances

 * Problems related to education and literacy
 * Problems related to employment and unemployment
 * Occupational exposure to risk-factors
 * Problems related to physical environment
 * Problems related to housing and economic circumstances
 * Problems related to social environment
 * Problems related to negative life events in childhood
 * Other problems related to upbringing
 * Other problems related to primary support group, including family circumstances
 * Problems related to certain psychosocial circumstances
 * Problems related to other psychosocial circumstances

(Z70-Z76) Persons encountering health services in other circumstances

 * Counselling related to sexual attitude, behaviour and orientation
 * Persons encountering health services for other counselling and medical advice, not elsewhere classified
 * Problems related to lifestyle
 * Problems related to life-management difficulty
 * Problems related to care-provider dependency
 * Problems related to medical facilities and other health care
 * Persons encountering health services in other circumstances

(Z80-Z99) Persons with potential health hazards related to family and personal history and certain conditions influencing health status

 * Family history of malignant neoplasm
 * Family history of mental and behavioural disorders
 * Family history of certain disabilities and chronic diseases leading to disablement
 * Family history of other specific disorders
 * Family history of other conditions
 * Personal history of malignant neoplasm
 * Personal history of certain other diseases
 * Personal history of other diseases and conditions
 * Personal history of allergy to drugs, medicaments and biological substances
 * Acquired absence of limb
 * Acquired absence of organs, not elsewhere classified
 * Personal history of risk-factors, not elsewhere classified
 * Personal history of medical treatment


 * Artificial opening status
 * Tracheostomy status
 * Gastrostomy status
 * Ileostomy status
 * Colostomy status
 * Other artificial openings of gastrointestinal tract status
 * Cystostomy status
 * Other artificial openings of urinary tract status
 * Other artificial opening status
 * Artificial opening status, unspecified


 * Transplanted organ and tissue status
 * Presence of cardiac and vascular implants and grafts
 * Presence of other functional implants
 * Presence of other devices
 * Other postsurgical states
 * Dependence on enabling machines and devices, not elsewhere classified