Z40-Z53
Encounters for other specific health care
Block coding notes
Excludes 1 never together · Excludes 2 may co-exist
Excludes 2
follow-up examination for medical surveillance after treatment (Z08-Z09)
Synonyms
Categories Z40-Z53 are intended for use to indicate a reason for care. They may be used for patients who have already been treated for a disease or injury, but who are receiving aftercare or prophylactic care, or care to consolidate the treatment, or to deal with a residual state
Codes in this block
221 codes
Billableusable codeNon-billableheader / grouping codeRisk-adjusting
- Z40Encounter for prophylactic surgeryNon-billable
- Z40.0Encounter for prophylactic surgery for risk factors related to malignant neoplasmsNon-billable
- Z40.00Encounter for prophylactic removal of unspecified organBillable
- Z40.01Encounter for prophylactic removal of breastBillable
- Z40.02Encounter for prophylactic removal of ovary(s)Billable
- Z40.03Encounter for prophylactic removal of fallopian tube(s)Billable
- Z40.09Encounter for prophylactic removal of other organBillable
- Z40.8Encounter for other prophylactic surgeryNon-billable
- Z40.81Encounter for prophylactic surgery for removal of ovary(s) for persons without known genetic/familial risk factorsBillable
- Z40.82Encounter for prophylactic surgery for removal of fallopian tube(s) for persons without known genetic/familial risk factorsBillable
- Z40.89Encounter for other prophylactic surgeryBillable
- Z40.9Encounter for prophylactic surgery, unspecifiedBillable
- Z41Encounter for procedures for purposes other than remedying health stateNon-billable
- Z41.1Encounter for cosmetic surgeryBillable
- Z41.2Encounter for routine and ritual male circumcisionBillable
- Z41.3Encounter for ear piercingBillable
- Z41.8Encounter for other procedures for purposes other than remedying health stateBillable
- Z41.9Encounter for procedure for purposes other than remedying health state, unspecifiedBillable
- Z42Encounter for plastic and reconstructive surgery following medical procedure or healed injuryNon-billable
- Z42.1Encounter for breast reconstruction following mastectomyBillable
- Z42.8Encounter for other plastic and reconstructive surgery following medical procedure or healed injuryBillable
- Z43Encounter for attention to artificial openingsNon-billable
- Z43.0Encounter for attention to tracheostomyBillable
- Z43.1Encounter for attention to gastrostomyBillable
- Z43.2Encounter for attention to ileostomyBillable
- Z43.3Encounter for attention to colostomyBillable
- Z43.4Encounter for attention to other artificial openings of digestive tractBillable
- Z43.5Encounter for attention to cystostomyBillable
- Z43.6Encounter for attention to other artificial openings of urinary tractBillable
- Z43.7Encounter for attention to artificial vaginaBillable
- Z43.8Encounter for attention to other artificial openingsBillable
- Z43.9Encounter for attention to unspecified artificial openingBillable
- Z44Encounter for fitting and adjustment of external prosthetic deviceNon-billable
- Z44.0Encounter for fitting and adjustment of artificial armNon-billable
- Z44.00Encounter for fitting and adjustment of unspecified artificial armNon-billable
- Z44.001Encounter for fitting and adjustment of unspecified right artificial armBillable
- Z44.002Encounter for fitting and adjustment of unspecified left artificial armBillable
- Z44.009Encounter for fitting and adjustment of unspecified artificial arm, unspecified armBillable
- Z44.01Encounter for fitting and adjustment of complete artificial armNon-billable
- Z44.011Encounter for fitting and adjustment of complete right artificial armBillable
- Z44.012Encounter for fitting and adjustment of complete left artificial armBillable
- Z44.019Encounter for fitting and adjustment of complete artificial arm, unspecified armBillable
- Z44.02Encounter for fitting and adjustment of partial artificial armNon-billable
- Z44.021Encounter for fitting and adjustment of partial artificial right armBillable
- Z44.022Encounter for fitting and adjustment of partial artificial left armBillable
- Z44.029Encounter for fitting and adjustment of partial artificial arm, unspecified armBillable
- Z44.1Encounter for fitting and adjustment of artificial legNon-billable
- Z44.10Encounter for fitting and adjustment of unspecified artificial legNon-billable
- Z44.101Encounter for fitting and adjustment of unspecified right artificial legBillable
- Z44.102Encounter for fitting and adjustment of unspecified left artificial legBillable
- Z44.109Encounter for fitting and adjustment of unspecified artificial leg, unspecified legBillable
- Z44.11Encounter for fitting and adjustment of complete artificial legNon-billable
- Z44.111Encounter for fitting and adjustment of complete right artificial legBillable
- Z44.112Encounter for fitting and adjustment of complete left artificial legBillable
- Z44.119Encounter for fitting and adjustment of complete artificial leg, unspecified legBillable
- Z44.12Encounter for fitting and adjustment of partial artificial legNon-billable
- Z44.121Encounter for fitting and adjustment of partial artificial right legBillable
- Z44.122Encounter for fitting and adjustment of partial artificial left legBillable
- Z44.129Encounter for fitting and adjustment of partial artificial leg, unspecified legBillable
- Z44.2Encounter for fitting and adjustment of artificial eyeNon-billable
- Z44.20Encounter for fitting and adjustment of artificial eye, unspecifiedBillable
- Z44.21Encounter for fitting and adjustment of artificial right eyeBillable
- Z44.22Encounter for fitting and adjustment of artificial left eyeBillable
- Z44.3Encounter for fitting and adjustment of external breast prosthesisNon-billable
- Z44.30Encounter for fitting and adjustment of external breast prosthesis, unspecified breastBillable
- Z44.31Encounter for fitting and adjustment of external right breast prosthesisBillable
- Z44.32Encounter for fitting and adjustment of external left breast prosthesisBillable
- Z44.8Encounter for fitting and adjustment of other external prosthetic devicesBillable
- Z44.9Encounter for fitting and adjustment of unspecified external prosthetic deviceBillable
- Z45Encounter for adjustment and management of implanted deviceNon-billable
- Z45.0Encounter for adjustment and management of cardiac deviceNon-billable
- Z45.01Encounter for adjustment and management of cardiac pacemakerNon-billable
- Z45.010Encounter for checking and testing of cardiac pacemaker pulse generator [battery]Billable
- Z45.018Encounter for adjustment and management of other part of cardiac pacemakerBillable
- Z45.02Encounter for adjustment and management of automatic implantable cardiac defibrillatorBillable
- Z45.09Encounter for adjustment and management of other cardiac deviceBillable
- Z45.1Encounter for adjustment and management of infusion pumpBillable
- Z45.2Encounter for adjustment and management of vascular access deviceBillable
- Z45.3Encounter for adjustment and management of implanted devices of the special sensesNon-billable
- Z45.31Encounter for adjustment and management of implanted visual substitution deviceBillable
- Z45.32Encounter for adjustment and management of implanted hearing deviceNon-billable
- Z45.320Encounter for adjustment and management of bone conduction deviceBillable
- Z45.321Encounter for adjustment and management of cochlear deviceBillable
- Z45.328Encounter for adjustment and management of other implanted hearing deviceBillable
- Z45.4Encounter for adjustment and management of implanted nervous system deviceNon-billable
- Z45.41Encounter for adjustment and management of cerebrospinal fluid drainage deviceBillable
- Z45.42Encounter for adjustment and management of neurostimulatorBillable
- Z45.49Encounter for adjustment and management of other implanted nervous system deviceBillable
- Z45.8Encounter for adjustment and management of other implanted devicesNon-billable
- Z45.81Encounter for adjustment or removal of breast implantNon-billable
- Z45.811Encounter for adjustment or removal of right breast implantBillable
- Z45.812Encounter for adjustment or removal of left breast implantBillable
- Z45.819Encounter for adjustment or removal of unspecified breast implantBillable
- Z45.82Encounter for adjustment or removal of myringotomy device (stent) (tube)Billable
- Z45.89Encounter for adjustment and management of other implanted devicesBillable
- Z45.9Encounter for adjustment and management of unspecified implanted deviceBillable
- Z46Encounter for fitting and adjustment of other devicesNon-billable
- Z46.0Encounter for fitting and adjustment of spectacles and contact lensesBillable
- Z46.1Encounter for fitting and adjustment of hearing aidBillable
- Z46.2Encounter for fitting and adjustment of other devices related to nervous system and special sensesBillable
- Z46.3Encounter for fitting and adjustment of dental prosthetic deviceBillable
- Z46.4Encounter for fitting and adjustment of orthodontic deviceBillable
- Z46.5Encounter for fitting and adjustment of other gastrointestinal appliance and deviceNon-billable
- Z46.51Encounter for fitting and adjustment of gastric lap bandBillable
- Z46.59Encounter for fitting and adjustment of other gastrointestinal appliance and deviceBillable
- Z46.6Encounter for fitting and adjustment of urinary deviceBillable
- Z46.8Encounter for fitting and adjustment of other specified devicesNon-billable
- Z46.81Encounter for fitting and adjustment of insulin pumpBillable
- Z46.82Encounter for fitting and adjustment of non-vascular catheterBillable
- Z46.89Encounter for fitting and adjustment of other specified devicesBillable
- Z46.9Encounter for fitting and adjustment of unspecified deviceBillable
- Z47Orthopedic aftercareNon-billable
- Z47.1Aftercare following joint replacement surgeryBillable
- Z47.2Encounter for removal of internal fixation deviceBillable
- Z47.3Aftercare following explantation of joint prosthesisNon-billable
- Z47.31Aftercare following explantation of shoulder joint prosthesisBillable
- Z47.32Aftercare following explantation of hip joint prosthesisBillable
- Z47.33Aftercare following explantation of knee joint prosthesisBillable
- Z47.8Encounter for other orthopedic aftercareNon-billable
- Z47.81Encounter for orthopedic aftercare following surgical amputationBillable
- Z47.82Encounter for orthopedic aftercare following scoliosis surgeryBillable
- Z47.89Encounter for other orthopedic aftercareBillable
- Z48Encounter for other postprocedural aftercareNon-billable
- Z48.0Encounter for attention to dressings, sutures and drainsNon-billable
- Z48.00Encounter for change or removal of nonsurgical wound dressingBillable
- Z48.01Encounter for change or removal of surgical wound dressingBillable
- Z48.02Encounter for removal of suturesBillable
- Z48.03Encounter for change or removal of drainsBillable
- Z48.1Encounter for planned postprocedural wound closureBillable
- Z48.2Encounter for aftercare following organ transplantNon-billable
- Z48.21Encounter for aftercare following heart transplantBillable
- Z48.22Encounter for aftercare following kidney transplantBillable
- Z48.23Encounter for aftercare following liver transplantBillable
- Z48.24Encounter for aftercare following lung transplantBillable
- Z48.28Encounter for aftercare following multiple organ transplantNon-billable
- Z48.280Encounter for aftercare following heart-lung transplantBillable
- Z48.288Encounter for aftercare following multiple organ transplantBillable
- Z48.29Encounter for aftercare following other organ transplantNon-billable
- Z48.290Encounter for aftercare following bone marrow transplantBillable
- Z48.298Encounter for aftercare following other organ transplantBillable
- Z48.3Aftercare following surgery for neoplasmBillable
- Z48.8Encounter for other specified postprocedural aftercareNon-billable
- Z48.81Encounter for surgical aftercare following surgery on specified body systemsNon-billable
- Z48.810Encounter for surgical aftercare following surgery on the sense organsBillable
- Z48.811Encounter for surgical aftercare following surgery on the nervous systemBillable
- Z48.812Encounter for surgical aftercare following surgery on the circulatory systemBillable
- Z48.813Encounter for surgical aftercare following surgery on the respiratory systemBillable
- Z48.814Encounter for surgical aftercare following surgery on the teeth or oral cavityBillable
- Z48.815Encounter for surgical aftercare following surgery on the digestive systemBillable
- Z48.816Encounter for surgical aftercare following surgery on the genitourinary systemBillable
- Z48.817Encounter for surgical aftercare following surgery on the skin and subcutaneous tissueBillable
- Z48.89Encounter for other specified surgical aftercareBillable
- Z49Encounter for care involving renal dialysisNon-billable
- Z49.0Preparatory care for renal dialysisNon-billable
- Z49.01Encounter for fitting and adjustment of extracorporeal dialysis catheterBillable
- Z49.02Encounter for fitting and adjustment of peritoneal dialysis catheterBillable
- Z49.3Encounter for adequacy testing for dialysisNon-billable
- Z49.31Encounter for adequacy testing for hemodialysisBillable
- Z49.32Encounter for adequacy testing for peritoneal dialysisBillable
- Z51Encounter for other aftercare and medical careNon-billable
- Z51.0Encounter for antineoplastic radiation therapyBillable
- Z51.1Encounter for antineoplastic chemotherapy and immunotherapyNon-billable
- Z51.11Encounter for antineoplastic chemotherapyBillable
- Z51.12Encounter for antineoplastic immunotherapyBillable
- Z51.5Encounter for palliative careBillable
- Z51.6Encounter for desensitization to allergensBillable
- Z51.8Encounter for other specified aftercareNon-billable
- Z51.81Encounter for therapeutic drug level monitoringBillable
- Z51.89Encounter for other specified aftercareBillable
- Z51.AEncounter for sepsis aftercareBillable
- Z52Donors of organs and tissuesNon-billable
- Z52.0Blood donorNon-billable
- Z52.00Unspecified blood donorNon-billable
- Z52.000Unspecified donor, whole bloodBillable
- Z52.001Unspecified donor, stem cellsBillable
- Z52.008Unspecified donor, other bloodBillable
- Z52.01Autologous blood donorNon-billable
- Z52.010Autologous donor, whole bloodBillable
- Z52.011Autologous donor, stem cellsBillable
- Z52.018Autologous donor, other bloodBillable
- Z52.09Other blood donorNon-billable
- Z52.090Other blood donor, whole bloodBillable
- Z52.091Other blood donor, stem cellsBillable
- Z52.098Other blood donor, other bloodBillable
- Z52.1Skin donorNon-billable
- Z52.10Skin donor, unspecifiedBillable
- Z52.11Skin donor, autologousBillable
- Z52.19Skin donor, otherBillable
- Z52.2Bone donorNon-billable
- Z52.20Bone donor, unspecifiedBillable
- Z52.21Bone donor, autologousBillable
- Z52.29Bone donor, otherBillable
- Z52.3Bone marrow donorBillable
- Z52.4Kidney donorBillable
- Z52.5Cornea donorBillable
- Z52.6Liver donorBillable
- Z52.8Donor of other specified organs or tissuesNon-billable
- Z52.81Egg (Oocyte) donorNon-billable
- Z52.810Egg (Oocyte) donor under age 35, anonymous recipientBillable
- Z52.811Egg (Oocyte) donor under age 35, designated recipientBillable
- Z52.812Egg (Oocyte) donor age 35 and over, anonymous recipientBillable
- Z52.813Egg (Oocyte) donor age 35 and over, designated recipientBillable
- Z52.819Egg (Oocyte) donor, unspecifiedBillable
- Z52.89Donor of other specified organs or tissuesBillable
- Z52.9Donor of unspecified organ or tissueBillable
- Z53Persons encountering health services for specific procedures and treatment, not carried outNon-billable
- Z53.0Procedure and treatment not carried out because of contraindicationNon-billable
- Z53.01Procedure and treatment not carried out due to patient smokingBillable
- Z53.09Procedure and treatment not carried out because of other contraindicationBillable
- Z53.1Procedure and treatment not carried out because of patient's decision for reasons of belief and group pressureBillable
- Z53.2Procedure and treatment not carried out because of patient's decision for other and unspecified reasonsNon-billable
- Z53.20Procedure and treatment not carried out because of patient's decision for unspecified reasonsBillable
- Z53.21Procedure and treatment not carried out due to patient leaving prior to being seen by health care providerBillable
- Z53.29Procedure and treatment not carried out because of patient's decision for other reasonsBillable
- Z53.3Procedure converted to open procedureNon-billable
- Z53.31Laparoscopic surgical procedure converted to open procedureBillable
- Z53.32Thoracoscopic surgical procedure converted to open procedureBillable
- Z53.33Arthroscopic surgical procedure converted to open procedureBillable
- Z53.39Other specified procedure converted to open procedureBillable
- Z53.8Procedure and treatment not carried out for other reasonsBillable
- Z53.9Procedure and treatment not carried out, unspecified reasonBillable
Official Guidelines for Z40-Z53
FY 2026 ›Sections that reference codes in Z40-Z53
- I.C.2.aAdmission/Encounter for treatment of primary siteZ51Chapter 2 guidance
- I.C.2.e.2)Patient admission/encounter chiefly for administration of antineoplastic chemotherapy, immunotherapy and radiation therapyZ51.0Chapter 2 guidance
- I.C.2.e.3)Patient admitted for radiation therapy, chemotherapy or immunotherapy and develops complicationsZ51.0Chapter 2 guidance
- I.C.21.c.7)AftercareZ48.812
- I.C.21.c.9)DonorZ52
- I.C.21.c.13)Miscellaneous Z CodesZ40.0
- I.C.21.c.14)Nonspecific Z CodesZ41.9
- I.C.21.c.15)Z Codes That May Only be Principal/First-Listed DiagnosisZ40
Showing 8 of 13 sections that reference this range. Browse all FY 2026 guidelines.