kodex

Kodex

Z21

Asymptomatic human immunodeficiency virus [HIV] infection status

Copy Code Send Code

Hierarchy

  • Z00-Z99 Factors influencing health status and contact with health services (Z00-Z99)
    • Z20-Z29 Persons with potential health hazards related to communicable diseases (Z20-Z29)
      • Z20 Contact with and (suspected) exposure to communicable diseases
      • Z21 Asymptomatic human immunodeficiency virus [HIV] infection status
      • Z22 Carrier of infectious disease
      • Z23 Encounter for immunization
      • Z28 Immunization not carried out and underimmunization status
      • Z29 Encounter for other prophylactic measures

Notes

Z00-Z99

  • 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.

Inclusion Terms

Z21

  • HIV positive NOS

Code First

Z21

  • O98.7 Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium

Excludes 1

Z21

  • acquired immunodeficiency syndrome (B20)
    • B20 Human immunodeficiency virus [HIV] disease
  • contact with human immunodeficiency virus [HIV] (Z20.6)
    • Z20.6 Contact with and (suspected) exposure to human immunodeficiency virus [HIV]
  • exposure to human immunodeficiency virus [HIV] (Z20.6)
    • Z20.6 Contact with and (suspected) exposure to human immunodeficiency virus [HIV]
  • B20 Human immunodeficiency virus [HIV] disease
  • R75 Inconclusive laboratory evidence of human immunodeficiency virus [HIV]