---
title: "ICD-10-CM Z12.31: Encounter for screening mammogram for… | BillingBrief"
description: "ICD-10-CM code Z12.31: Encounter for screening mammogram for malignant neoplasm of breast. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/z12.31/"
language: "en"
---

# Z12.31 Encounter for screening mammogram for malignant neoplasm of breast

ICD-10-CM · [CMS code reference](#source)

**Official ICD-10-CM description:** Encounter for screening mammogram for malignant neoplasm of breast

## Related codes

-   [`Z12.0` Encounter for screening for malignant neoplasm of stomach ICD-10-CM](https://billingbrief.com/icd10/z12.0/)
-   [`Z12.10` Encounter for screening for malignant neoplasm of intestinal tract, unspecified ICD-10-CM](https://billingbrief.com/icd10/z12.10/)
-   [`Z12.11` Encounter for screening for malignant neoplasm of colon ICD-10-CM](https://billingbrief.com/icd10/z12.11/)
-   [`Z12.12` Encounter for screening for malignant neoplasm of rectum ICD-10-CM](https://billingbrief.com/icd10/z12.12/)
-   [`Z12.13` Encounter for screening for malignant neoplasm of small intestine ICD-10-CM](https://billingbrief.com/icd10/z12.13/)
-   [`Z12.2` Encounter for screening for malignant neoplasm of respiratory organs ICD-10-CM](https://billingbrief.com/icd10/z12.2/)
-   [`Z12.39` Encounter for other screening for malignant neoplasm of breast ICD-10-CM](https://billingbrief.com/icd10/z12.39/)
-   [`Z12.4` Encounter for screening for malignant neoplasm of cervix ICD-10-CM](https://billingbrief.com/icd10/z12.4/)

## Common questions

### Is Z12.31 a billable code?

Yes. Z12.31 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

Z12 Encounter for screening for malignant neoplasms

Chapter

Factors influencing health status and contact with health services

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).