Z12.31 ICD-10-CM Code: Encounter for screening mammogram for malignant neoplasm of breast
Z12.31 is the billable ICD-10-CM code for “Encounter for screening mammogram for malignant neoplasm of breast” in the FY 2027 U.S. code set, effective Oct 1, 2026.
Official description
Z12.31Encounter for screening mammogram for malignant neoplasm of breast
ICD-10-CM diagnosis code · United States clinical modification
Where Z12.31 sits
- 1
Chapter 21
Factors influencing health status and contact with health services (Z00-Z99)
- 2
Section
Persons encountering health services for examinations (Z00-Z13)
- 3
Category Z12
Encounter for screening for malignant neoplasms
- 4
Subcategory Z12.3
Encounter for screening for malignant neoplasm of breast
- 5
Code Z12.31
Encounter for screening mammogram for malignant neoplasm of breast
Notes for this code
Inclusion terms
No inclusion terms are listed for Z12.31.
Code first
No “code first” instruction is listed for Z12.31.
Use additional code
No “use additional code” instruction is listed for Z12.31.
Excludes1
Conditions that should not be reported together with this code.
- inconclusive mammogram (R92.2)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for Z12.31.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code Z12.31 mean?
Z12.31 is the FY 2027 U.S. ICD-10-CM code for “Encounter for screening mammogram for malignant neoplasm of breast.”
Is Z12.31 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, Z12.31 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is Z12.31 located in ICD-10-CM?
Z12.31 is listed in Chapter 21, Factors influencing health status and contact with health services (Z00-Z99), within Persons encountering health services for examinations (Z00-Z13) (Z00–Z13), under category Z12, Encounter for screening for malignant neoplasms and subcategory Z12.3, Encounter for screening for malignant neoplasm of breast.
What coding notes are listed for Z12.31?
No inclusion terms are listed for Z12.31 in this reference record. No code-first instruction is listed. Excludes1 notes: inconclusive mammogram (R92.2). No Excludes2 note is listed.