Z13 – Encounter for screening for other diseases and disorders

ICD-10-CM 2027 diagnosis code · Persons encountering health services for examinations

Non-billable header

ICD-10-CM code Z13

Code: Z13 (claims format: Z13)
Description: Encounter for screening for other diseases and disorders
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 21. Factors influencing health status and contact with health services (Z00-Z99)
Block: Z00-Z13 Persons encountering health services for examinations

Billable codes under Z13

Z13 is a header code and cannot be used on claims. Choose the most specific code:

Z13.0 – Encounter for screening for diseases of the blood and blood-forming organs and certain disorders involving the immune mechanismBillable
Z13.1 – Encounter for screening for diabetes mellitusBillable
Z13.2 – Encounter for screening for nutritional, metabolic and other endocrine disordersHeader (more codes below)
Z13.3 – Encounter for screening examination for mental health and behavioral disordersHeader (more codes below)
Z13.4 – Encounter for screening for certain developmental disorders in childhoodHeader (more codes below)
Z13.5 – Encounter for screening for eye and ear disordersBillable
Z13.6 – Encounter for screening for cardiovascular disordersBillable
Z13.7 – Encounter for screening for genetic and chromosomal anomaliesHeader (more codes below)
Z13.8 – Encounter for screening for other specified diseases and disordersHeader (more codes below)
Z13.9 – Encounter for screening, unspecifiedBillable

Notes for Z13

Applicable to:

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.

Excludes1 (not coded here):

encounter for diagnostic examination-code to sign or symptom

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block Z00-Z13

Excludes2 (not included here):

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.

Frequently asked questions

What is ICD-10 code Z13?

Z13 is the ICD-10-CM code for encounter for screening for other diseases and disorders, in the block Z00-Z13 (Persons encountering health services for examinations).

Is Z13 a billable code?

No. Z13 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.