Persons encountering health services for examinations (Z00-Z13)

Browse all the diagnosis codes used for persons encountering health services for examinations (z00-z13). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Instructional Notations

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • examinations related to pregnancy and reproduction Z30 Z36 Z39

  • Nonspecific abnormal findings disclosed at the time of these examinations are classified to categories R70
  • Factors influencing health status and contact with health services (Z00–Z99)

    • Persons encountering health services for examinations (Z00-Z13)

        • Encounter for general examination without complaint, suspected or reported diagnosis (Z00)

        • Z00 Encounter for general examination without complaint, suspected or reported diagnosis
        • Z00.0 Encounter for general adult medical examination
        • Z00.00 Encounter for general adult medical examination without abnormal findings
        • Z00.01 Encounter for general adult medical examination with abnormal findings
        • Z00.1 Encounter for newborn, infant and child health examinations
        • Z00.11 Newborn health examination
        • Z00.110 Health examination for newborn under 8 days old
        • Z00.111 Health examination for newborn 8 to 28 days old
        • Z00.12 Encounter for routine child health examination
        • Z00.121 Encounter for routine child health examination with abnormal findings
        • Z00.129 Encounter for routine child health examination without abnormal findings
        • Z00.2 Encounter for examination for period of rapid growth in childhood
        • Z00.3 Encounter for examination for adolescent development state
        • Z00.5 Encounter for examination of potential donor of organ and tissue
        • Z00.6 Encounter for examination for normal comparison and control in clinical research program
        • Z00.7 Encounter for examination for period of delayed growth in childhood
        • Z00.70 Encounter for examination for period of delayed growth in childhood without abnormal findings
        • Z00.71 Encounter for examination for period of delayed growth in childhood with abnormal findings
        • Z00.8 Encounter for other general examination
        • Encounter for other special examination without complaint, suspected or reported diagnosis (Z01)

        • Z01 Encounter for other special examination without complaint, suspected or reported diagnosis
        • Z01.0 Encounter for examination of eyes and vision
        • Z01.00 Encounter for examination of eyes and vision without abnormal findings
        • Z01.01 Encounter for examination of eyes and vision with abnormal findings
        • Z01.02 Encounter for examination of eyes and vision following failed vision screening
        • Z01.020 Encounter for examination of eyes and vision following failed vision screening without abnormal findings
        • Z01.021 Encounter for examination of eyes and vision following failed vision screening with abnormal findings
        • Z01.1 Encounter for examination of ears and hearing
        • Z01.10 Encounter for examination of ears and hearing without abnormal findings
        • Z01.11 Encounter for examination of ears and hearing with abnormal findings
        • Z01.110 Encounter for hearing examination following failed hearing screening
        • Z01.118 Encounter for examination of ears and hearing with other abnormal findings
        • Z01.12 Encounter for hearing conservation and treatment
        • Z01.2 Encounter for dental examination and cleaning
        • Z01.20 Encounter for dental examination and cleaning without abnormal findings
        • Z01.21 Encounter for dental examination and cleaning with abnormal findings
        • Z01.3 Encounter for examination of blood pressure
        • Z01.30 Encounter for examination of blood pressure without abnormal findings
        • Z01.31 Encounter for examination of blood pressure with abnormal findings
        • Z01.4 Encounter for gynecological examination
        • Z01.41 Encounter for routine gynecological examination
        • Z01.411 Encounter for gynecological examination (general) (routine) with abnormal findings
        • Z01.419 Encounter for gynecological examination (general) (routine) without abnormal findings
        • Z01.42 Encounter for cervical smear to confirm findings of recent normal smear following initial abnormal smear
        • Z01.8 Encounter for other specified special examinations
        • Z01.81 Encounter for preprocedural examinations
        • Z01.810 Encounter for preprocedural cardiovascular examination
        • Z01.811 Encounter for preprocedural respiratory examination
        • Z01.812 Encounter for preprocedural laboratory examination
        • Z01.818 Encounter for other preprocedural examination
        • Z01.82 Encounter for allergy testing
        • Z01.83 Encounter for blood typing
        • Z01.84 Encounter for antibody response examination
        • Z01.89 Encounter for other specified special examinations
        • Encounter for administrative examination (Z02)

        • Z02 Encounter for administrative examination
        • Z02.0 Encounter for examination for admission to educational institution
        • Z02.1 Encounter for pre-employment examination
        • Z02.2 Encounter for examination for admission to residential institution
        • Z02.3 Encounter for examination for recruitment to armed forces
        • Z02.4 Encounter for examination for driving license
        • Z02.5 Encounter for examination for participation in sport
        • Z02.6 Encounter for examination for insurance purposes
        • Z02.7 Encounter for issue of medical certificate
        • Z02.71 Encounter for disability determination
        • Z02.79 Encounter for issue of other medical certificate
        • Z02.8 Encounter for other administrative examinations
        • Z02.81 Encounter for paternity testing
        • Z02.82 Encounter for adoption services
        • Z02.83 Encounter for blood-alcohol and blood-drug test
        • Z02.84 Encounter for child welfare exam NEW CODE
        • Z02.89 Encounter for other administrative examinations
        • Z02.9 Encounter for administrative examinations, unspecified
        • Encounter for medical observation for suspected diseases and conditions ruled out (Z03)

        • Z03 Encounter for medical observation for suspected diseases and conditions ruled out
        • Z03.6 Encounter for observation for suspected toxic effect from ingested substance ruled out
        • Z03.7 Encounter for suspected maternal and fetal conditions ruled out
        • Z03.71 Encounter for suspected problem with amniotic cavity and membrane ruled out
        • Z03.72 Encounter for suspected placental problem ruled out
        • Z03.73 Encounter for suspected fetal anomaly ruled out
        • Z03.74 Encounter for suspected problem with fetal growth ruled out
        • Z03.75 Encounter for suspected cervical shortening ruled out
        • Z03.79 Encounter for other suspected maternal and fetal conditions ruled out
        • Z03.8 Encounter for observation for other suspected diseases and conditions ruled out
        • Z03.81 Encounter for observation for suspected exposure to biological agents ruled out
        • Z03.810 Encounter for observation for suspected exposure to anthrax ruled out
        • Z03.818 Encounter for observation for suspected exposure to other biological agents ruled out
        • Z03.82 Encounter for observation for suspected foreign body ruled out
        • Z03.821 Encounter for observation for suspected ingested foreign body ruled out
        • Z03.822 Encounter for observation for suspected aspirated (inhaled) foreign body ruled out
        • Z03.823 Encounter for observation for suspected inserted (injected) foreign body ruled out
        • Z03.83 Encounter for observation for suspected conditions related to home physiologic monitoring device ruled out
        • Z03.89 Encounter for observation for other suspected diseases and conditions ruled out
        • Encounter for examination and observation for other reasons (Z04)

        • Z04 Encounter for examination and observation for other reasons
        • Z04.1 Encounter for examination and observation following transport accident
        • Z04.2 Encounter for examination and observation following work accident
        • Z04.3 Encounter for examination and observation following other accident
        • Z04.4 Encounter for examination and observation following alleged rape
        • Z04.41 Encounter for examination and observation following alleged adult rape
        • Z04.42 Encounter for examination and observation following alleged child rape
        • Z04.6 Encounter for general psychiatric examination, requested by authority
        • Z04.7 Encounter for examination and observation following alleged physical abuse
        • Z04.71 Encounter for examination and observation following alleged adult physical abuse
        • Z04.72 Encounter for examination and observation following alleged child physical abuse
        • Z04.8 Encounter for examination and observation for other specified reasons
        • Z04.81 Encounter for examination and observation of victim following forced sexual exploitation
        • Z04.82 Encounter for examination and observation of victim following forced labor exploitation
        • Z04.89 Encounter for examination and observation for other specified reasons
        • Z04.9 Encounter for examination and observation for unspecified reason
        • Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out (Z05)

        • Z05 Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out
        • Z05.0 Observation and evaluation of newborn for suspected cardiac condition ruled out
        • Z05.1 Observation and evaluation of newborn for suspected infectious condition ruled out
        • Z05.2 Observation and evaluation of newborn for suspected neurological condition ruled out
        • Z05.3 Observation and evaluation of newborn for suspected respiratory condition ruled out
        • Z05.4 Observation and evaluation of newborn for suspected genetic, metabolic or immunologic condition ruled out
        • Z05.41 Observation and evaluation of newborn for suspected genetic condition ruled out
        • Z05.42 Observation and evaluation of newborn for suspected metabolic condition ruled out
        • Z05.43 Observation and evaluation of newborn for suspected immunologic condition ruled out
        • Z05.5 Observation and evaluation of newborn for suspected gastrointestinal condition ruled out
        • Z05.6 Observation and evaluation of newborn for suspected genitourinary condition ruled out
        • Z05.7 Observation and evaluation of newborn for suspected skin, subcutaneous, musculoskeletal and connective tissue condition ruled out
        • Z05.71 Observation and evaluation of newborn for suspected skin and subcutaneous tissue condition ruled out
        • Z05.72 Observation and evaluation of newborn for suspected musculoskeletal condition ruled out
        • Z05.73 Observation and evaluation of newborn for suspected connective tissue condition ruled out
        • Z05.8 Observation and evaluation of newborn for other specified suspected condition ruled out NEW CODE
        • Z05.81 Observation and evaluation of newborn for suspected condition related to home physiologic monitoring device ruled out NEW CODE
        • Z05.89 Observation and evaluation of newborn for other specified suspected condition ruled out NEW CODE
        • Z05.9 Observation and evaluation of newborn for unspecified suspected condition ruled out
        • Encounter for screening for infectious and parasitic diseases (Z11)

        • Z11 Encounter for screening for infectious and parasitic diseases
        • Z11.0 Encounter for screening for intestinal infectious diseases
        • Z11.1 Encounter for screening for respiratory tuberculosis
        • Z11.2 Encounter for screening for other bacterial diseases
        • Z11.3 Encounter for screening for infections with a predominantly sexual mode of transmission
        • Z11.4 Encounter for screening for human immunodeficiency virus [HIV]
        • Z11.5 Encounter for screening for other viral diseases
        • Z11.51 Encounter for screening for human papillomavirus (HPV)
        • Z11.52 Encounter for screening for COVID-19
        • Z11.59 Encounter for screening for other viral diseases
        • Z11.6 Encounter for screening for other protozoal diseases and helminthiases
        • Z11.7 Encounter for testing for latent tuberculosis infection
        • Z11.8 Encounter for screening for other infectious and parasitic diseases
        • Z11.9 Encounter for screening for infectious and parasitic diseases, unspecified
        • Encounter for screening for malignant neoplasms (Z12)

        • Z12 Encounter for screening for malignant neoplasms
        • Z12.0 Encounter for screening for malignant neoplasm of stomach
        • Z12.1 Encounter for screening for malignant neoplasm of intestinal tract
        • Z12.10 Encounter for screening for malignant neoplasm of intestinal tract, unspecified
        • Z12.11 Encounter for screening for malignant neoplasm of colon
        • Z12.12 Encounter for screening for malignant neoplasm of rectum
        • Z12.13 Encounter for screening for malignant neoplasm of small intestine
        • Z12.2 Encounter for screening for malignant neoplasm of respiratory organs
        • Z12.3 Encounter for screening for malignant neoplasm of breast
        • Z12.31 Encounter for screening mammogram for malignant neoplasm of breast
        • Z12.39 Encounter for other screening for malignant neoplasm of breast
        • Z12.4 Encounter for screening for malignant neoplasm of cervix
        • Z12.5 Encounter for screening for malignant neoplasm of prostate
        • Z12.6 Encounter for screening for malignant neoplasm of bladder
        • Z12.7 Encounter for screening for malignant neoplasm of other genitourinary organs
        • Z12.71 Encounter for screening for malignant neoplasm of testis
        • Z12.72 Encounter for screening for malignant neoplasm of vagina
        • Z12.73 Encounter for screening for malignant neoplasm of ovary
        • Z12.79 Encounter for screening for malignant neoplasm of other genitourinary organs
        • Z12.8 Encounter for screening for malignant neoplasm of other sites
        • Z12.81 Encounter for screening for malignant neoplasm of oral cavity
        • Z12.82 Encounter for screening for malignant neoplasm of nervous system
        • Z12.83 Encounter for screening for malignant neoplasm of skin
        • Z12.89 Encounter for screening for malignant neoplasm of other sites
        • Z12.9 Encounter for screening for malignant neoplasm, site unspecified
        • Encounter for screening for other diseases and disorders (Z13)

        • Z13 Encounter for screening for other diseases and disorders
        • Z13.0 Encounter for screening for diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
        • Z13.1 Encounter for screening for diabetes mellitus
        • Z13.2 Encounter for screening for nutritional, metabolic and other endocrine disorders
        • Z13.21 Encounter for screening for nutritional disorder
        • Z13.22 Encounter for screening for metabolic disorder
        • Z13.220 Encounter for screening for lipoid disorders
        • Z13.228 Encounter for screening for other metabolic disorders
        • Z13.29 Encounter for screening for other suspected endocrine disorder
        • Z13.3 Encounter for screening examination for mental health and behavioral disorders
        • Z13.30 Encounter for screening examination for mental health and behavioral disorders, unspecified
        • Z13.31 Encounter for screening for depression
        • Z13.32 Encounter for screening for maternal depression
        • Z13.39 Encounter for screening examination for other mental health and behavioral disorders
        • Z13.4 Encounter for screening for certain developmental disorders in childhood
        • Z13.40 Encounter for screening for unspecified developmental delays
        • Z13.41 Encounter for autism screening
        • Z13.42 Encounter for screening for global developmental delays (milestones)
        • Z13.49 Encounter for screening for other developmental delays
        • Z13.5 Encounter for screening for eye and ear disorders
        • Z13.6 Encounter for screening for cardiovascular disorders
        • Z13.7 Encounter for screening for genetic and chromosomal anomalies
        • Z13.71 Encounter for nonprocreative screening for genetic disease carrier status
        • Z13.79 Encounter for other screening for genetic and chromosomal anomalies
        • Z13.8 Encounter for screening for other specified diseases and disorders
        • Z13.81 Encounter for screening for digestive system disorders
        • Z13.810 Encounter for screening for upper gastrointestinal disorder
        • Z13.811 Encounter for screening for lower gastrointestinal disorder
        • Z13.818 Encounter for screening for other digestive system disorders
        • Z13.82 Encounter for screening for musculoskeletal disorder
        • Z13.820 Encounter for screening for osteoporosis
        • Z13.828 Encounter for screening for other musculoskeletal disorder
        • Z13.83 Encounter for screening for respiratory disorder NEC
        • Z13.84 Encounter for screening for dental disorders
        • Z13.85 Encounter for screening for nervous system disorders
        • Z13.850 Encounter for screening for traumatic brain injury
        • Z13.858 Encounter for screening for other nervous system disorders
        • Z13.88 Encounter for screening for disorder due to exposure to contaminants
        • Z13.89 Encounter for screening for other disorder
        • Z13.9 Encounter for screening, unspecified