Coding and coverage · ICD-10-CM

Z13 Encounter for screening for other diseases and disorders

Not billable (header)Chapter 21

Report one of the more specific codes below.

Codes under this one

  • 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 disordersHeader
  • Z13.3 Encounter for screening examination for mental health and behavioral disordersHeader
  • Z13.4 Encounter for screening for certain developmental disorders in childhoodHeader
  • 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 anomaliesHeader
  • Z13.8 Encounter for screening for other specified diseases and disordersHeader
  • Z13.9 Encounter for screening, unspecified

Instructional notes

Chapter 21

Notes
  • 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.

Section Z00-Z13

Excludes2Not included here: the patient may have both; report both when both are present.
  • examinations related to pregnancy and reproduction (Z30-Z36, Z39.-)
Notes
  • Nonspecific abnormal findings disclosed at the time of these examinations are classified to categories R70-R94.

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • encounter for diagnostic examination-code to sign or symptom
Inclusion terms
  • Screening is the testing for disease or disease precursors in asymptomatic individuals so that early detection and treatment can be provided for those who test positive for the disease.

Chapter 21: Factors influencing health status and contact with health services · Z00-Z13 Persons encountering health services for examinations (Z00-Z13)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.