MCMCB Pro
Z36

Z36Encounter for antenatal screening of mother

Non-billable headerICD-10-CM

Z36 is a non-billable header ICD-10-CM code for encounter for antenatal screening of mother. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • diagnostic examination- code to sign or symptom
  • encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
  • suspected fetal condition affecting management of pregnancy - code to condition in Chapter 15

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • abnormal findings on antenatal screening of mother (O28.-)
  • genetic counseling and testing (Z31.43-, Z31.5)
  • routine prenatal care (Z34)

Includes

Conditions this code covers.

  • Encounter for placental sample (taken vaginally)
  • 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.

Risk adjustment

Z36 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead Z36

8 child codes. Green means billable.

Questions about Z36

Is Z36 a billable ICD-10-CM code?
No. Z36 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Z36 sit in the tabular list?
Factors influencing health status and contact with health services (Z00-Z99), in the block Persons encountering health services in circumstances related to reproduction (Z30-Z39).
What cannot be coded together with Z36?
Z36 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.