Z ICD-10-CM Categories: Category Index
Browse 90 top-level ICD-10-CM categories beginning with Z, then follow their complete FY 2027 child-code hierarchies.
Categories beginning with Z
Open a category to continue through its complete hierarchy of more specific codes.
Z00Encounter for general examination without complaint, suspected or reported diagnosisZ01Encounter for other special examination without complaint, suspected or reported diagnosisZ02Encounter for administrative examinationZ03Encounter for medical observation for suspected diseases and conditions ruled outZ04Encounter for examination and observation for other reasonsZ05Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled outZ08Encounter for follow-up examination after completed treatment for malignant neoplasmZ09Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasmZ11Encounter for screening for infectious and parasitic diseasesZ12Encounter for screening for malignant neoplasmsZ13Encounter for screening for other diseases and disordersZ14Genetic carrierZ15Genetic susceptibility to diseaseZ16Resistance to antimicrobial drugsZ17Estrogen, and other hormones and factors receptor statusZ18Retained foreign body fragmentsZ19Hormone sensitivity malignancy statusZ20Contact with and (suspected) exposure to communicable diseasesZ21Asymptomatic human immunodeficiency virus [HIV] infection statusZ22Carrier of infectious diseaseZ23Encounter for immunizationZ28Immunization not carried out and underimmunization statusZ29Encounter for other prophylactic measuresZ30Encounter for contraceptive managementZ31Encounter for procreative managementZ32Encounter for pregnancy test and childbirth and childcare instructionZ33Pregnant stateZ34Encounter for supervision of normal pregnancyZ36Encounter for antenatal screening of motherZ37Outcome of deliveryZ38Liveborn infants according to place of birth and type of deliveryZ39Encounter for maternal postpartum care and examinationZ3AWeeks of gestationZ40Encounter for prophylactic surgeryZ41Encounter for procedures for purposes other than remedying health stateZ42Encounter for plastic and reconstructive surgery following medical procedure or healed injuryZ43Encounter for attention to artificial openingsZ44Encounter for fitting and adjustment of external prosthetic deviceZ45Encounter for adjustment and management of implanted deviceZ46Encounter for fitting and adjustment of other devicesZ47Orthopedic aftercareZ48Encounter for other postprocedural aftercareZ49Encounter for care involving renal dialysisZ51Encounter for other aftercare and medical careZ52Donors of organs and tissuesZ53Persons encountering health services for specific procedures and treatment, not carried outZ55Problems related to education and literacyZ56Problems related to employment and unemploymentZ57Occupational exposure to risk factorsZ58Problems related to physical environmentZ59Problems related to housing and economic circumstancesZ60Problems related to social environmentZ62Problems related to upbringingZ63Other problems related to primary support group, including family circumstancesZ64Problems related to certain psychosocial circumstancesZ65Problems related to other psychosocial circumstancesZ66Do not resuscitateZ67Blood typeZ68Body mass index [BMI]Z69Encounter for mental health services for victim and perpetrator of abuseZ70Counseling related to sexual attitude, behavior and orientationZ71Persons encountering health services for other counseling and medical advice, not elsewhere classifiedZ72Problems related to lifestyleZ73Problems related to life management difficultyZ74Problems related to care provider dependencyZ75Problems related to medical facilities and other health careZ76Persons encountering health services in other circumstancesZ77Other contact with and (suspected) exposures hazardous to healthZ78Other specified health statusZ79Long term (current) drug therapyZ80Family history of primary malignant neoplasmZ81Family history of mental and behavioral disordersZ82Family history of certain disabilities and chronic diseases (leading to disablement)Z83Family history of other specific disordersZ84Family history of other conditionsZ85Personal history of malignant neoplasmZ86Personal history of certain other diseasesZ87Personal history of other diseases and conditionsZ88Allergy status to drugs, medicaments and biological substancesZ89Acquired absence of limbZ90Acquired absence of organs, not elsewhere classifiedZ91Personal risk factors, not elsewhere classifiedZ92Personal history of medical treatmentZ93Artificial opening statusZ94Transplanted organ and tissue statusZ95Presence of cardiac and vascular implants and graftsZ96Presence of other functional implantsZ97Presence of other devicesZ98Other postprocedural statesZ99Dependence on enabling machines and devices, not elsewhere classifiedSource and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This category index is generated from Vero’s repository-backed ICD-10-CM hierarchy. Every listed category is a top-level record, and each linked category page exposes its direct child codes.
Frequently asked questions
Which ICD-10-CM categories begin with Z?
This index lists 90 top-level categories beginning with Z from Vero’s FY 2027 U.S. ICD-10-CM reference dataset.
How do I find a more specific Z code?
Open a category below, then follow its linked child-code hierarchy until you reach the code supported by the documentation.
Which ICD-10-CM release does this Z index use?
The index uses the FY 2027 U.S. ICD-10-CM release and the repository-backed hierarchy displayed on each linked code page.
Is every Z category billable?
No. These are top-level categories used for navigation. Follow the hierarchy to a sufficiently specific code and confirm the active code set, official guidance, and payer requirements.