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
  • Z45.31

    Encounter for adjustment and management of implanted visual substitution device

  • Z45.32

    Encounter for adjustment and management of implanted hearing device

  • Z45.320

    Encounter for adjustment and management of bone conduction device

  • Z45.321

    Encounter for adjustment and management of cochlear device

  • Z45.328

    Encounter for adjustment and management of other implanted hearing device

  • Z45.4

    Encounter for adjustment and management of implanted nervous system device

  • Z45.41

    Encounter for adjustment and management of cerebrospinal fluid drainage device

  • Z45.42

    Encounter for adjustment and management of neurostimulator

  • Z45.49

    Encounter for adjustment and management of other implanted nervous system device

  • Z45.8

    Encounter for adjustment and management of other implanted devices

  • Z45.81

    Encounter for adjustment or removal of breast implant

  • Z45.811

    Encounter for adjustment or removal of right breast implant

  • Z45.812

    Encounter for adjustment or removal of left breast implant

  • Z45.819

    Encounter for adjustment or removal of unspecified breast implant

  • Z45.82

    Encounter for adjustment or removal of myringotomy device (stent) (tube)

  • Z45.89

    Encounter for adjustment and management of other implanted devices

  • Z45.9

    Encounter for adjustment and management of unspecified implanted device

  • Z46

    Encounter for fitting and adjustment of other devices

  • Z46.0

    Encounter for fitting and adjustment of spectacles and contact lenses

  • Z46.1

    Encounter for fitting and adjustment of hearing aid

  • Z46.2

    Encounter for fitting and adjustment of other devices related to nervous system and special senses

  • Z46.3

    Encounter for fitting and adjustment of dental prosthetic device

  • Z46.4

    Encounter for fitting and adjustment of orthodontic device

  • Z46.5

    Encounter for fitting and adjustment of other gastrointestinal appliance and device

  • Z46.51

    Encounter for fitting and adjustment of gastric lap band

  • Z46.59

    Encounter for fitting and adjustment of other gastrointestinal appliance and device

  • Z46.6

    Encounter for fitting and adjustment of urinary device

  • Z46.8

    Encounter for fitting and adjustment of other specified devices

  • Z46.81

    Encounter for fitting and adjustment of insulin pump

  • Z46.82

    Encounter for fitting and adjustment of non-vascular catheter

  • Z46.89

    Encounter for fitting and adjustment of other specified devices

  • Z46.9

    Encounter for fitting and adjustment of unspecified device

  • Z47

    Orthopedic aftercare

  • Z47.1

    Aftercare following joint replacement surgery

  • Z47.2

    Encounter for removal of internal fixation device

  • Z47.3

    Aftercare following explantation of joint prosthesis

  • Z47.31

    Aftercare following explantation of shoulder joint prosthesis

  • Z47.32

    Aftercare following explantation of hip joint prosthesis

  • Z47.33

    Aftercare following explantation of knee joint prosthesis

  • Z47.8

    Encounter for other orthopedic aftercare

  • Z47.81

    Encounter for orthopedic aftercare following surgical amputation

  • Z47.82

    Encounter for orthopedic aftercare following scoliosis surgery

  • Z47.89

    Encounter for other orthopedic aftercare

  • Z48

    Encounter for other postprocedural aftercare

  • Z48.0

    Encounter for attention to dressings, sutures and drains

  • Z48.00

    Encounter for change or removal of nonsurgical wound dressing

  • Z48.01

    Encounter for change or removal of surgical wound dressing

  • Z48.02

    Encounter for removal of sutures

  • Z48.03

    Encounter for change or removal of drains

  • Z48.1

    Encounter for planned postprocedural wound closure

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