Z39.1Billable

Encounter for care and examination of lactating mother

Chapter
21. Factors influencing health status and contact with health services
Category
Z39
Effective date
October 1, 2026

Related codes in category Z39

Z39Encounter for maternal postpartum care and examinationZ39.0Encntr for care and exam of mother immediately after delYesZ39.2Encounter for routine postpartum follow-upYes

Frequently asked questions

What is ICD-10 code Z39.1?

Z39.1 is an ICD-10-CM diagnosis code for Encounter for care and examination of lactating mother.

Is Z39.1 a billable code?

Yes. Z39.1 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is Z39.1 in?

Z39.1 falls under Chapter 21: Factors influencing health status and contact with health services.

When did Z39.1 become effective?

Z39.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to Z39.1?

Z39.1 belongs to category Z39, which includes 3 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.