ICD-10-CM
ICD-10 code for Screening mammogram: Z12.31
The closest CDC title for "Screening mammogram" is Z12.31, Encounter for screening mammogram for malignant neoplasm of breast. Z12.31 is a billable code.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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Codes under Z12, then other CDC titles that name encounter for screening mammogram for malignant neoplasm of breast
A header groups codes and is not billed. A billable code is one you can report.
- Z12Encounter for screening for malignant neoplasmsHeader
- Z12.0Encounter for screening for malignant neoplasm of stomachBillable
- Z12.1Encounter for screening for malignant neoplasm of intestinal tractHeader
- Z12.10Encounter for screening for malignant neoplasm of intestinal tract, unspecifiedBillable
- Z12.11Encounter for screening for malignant neoplasm of colonBillable
- Z12.12Encounter for screening for malignant neoplasm of rectumBillable
- Z12.13Encounter for screening for malignant neoplasm of small intestineBillable
- Z12.2Encounter for screening for malignant neoplasm of respiratory organsBillable
- Z12.3Encounter for screening for malignant neoplasm of breastHeader
- Z12.31Encounter for screening mammogram for malignant neoplasm of breastBillable
- Z12.39Encounter for other screening for malignant neoplasm of breastBillable
- Z12.4Encounter for screening for malignant neoplasm of cervixBillable
- Z12.5Encounter for screening for malignant neoplasm of prostateBillable
- Z12.6Encounter for screening for malignant neoplasm of bladderBillable
- Z12.7Encounter for screening for malignant neoplasm of other genitourinary organsHeader
- Z12.71Encounter for screening for malignant neoplasm of testisBillable
- Z12.72Encounter for screening for malignant neoplasm of vaginaBillable
- Z12.73Encounter for screening for malignant neoplasm of ovaryBillable
- Z12.79Encounter for screening for malignant neoplasm of other genitourinary organsBillable
- Z12.8Encounter for screening for malignant neoplasm of other sitesHeader
- Z12.81Encounter for screening for malignant neoplasm of oral cavityBillable
- Z12.82Encounter for screening for malignant neoplasm of nervous systemBillable
- Z12.83Encounter for screening for malignant neoplasm of skinBillable
- Z12.89Encounter for screening for malignant neoplasm of other sitesBillable
- Z12.9Encounter for screening for malignant neoplasm, site unspecifiedBillable
Use additional code
The CDC tabular list says to add the code named here after this one when it applies.
From Z12. A note on a category applies to every code under it.
Use additional code to identify any family history of malignant neoplasm (Z80.-)
Excludes1
Excludes1 means these codes are not reported together.
From Z12. A note on a category applies to every code under it.
- encounter for diagnostic examination-code to sign or symptom
Related conditions
Related pages
- Z12.31 code detailsNotes, nearby codes, CMS-HCC group
- Category Z12Every code under it
- Chapter 21Factors influencing health status
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Screening mammogram?
The closest CDC title for "Screening mammogram" is Z12.31, Encounter for screening mammogram for malignant neoplasm of breast. Z12.31 is a billable code.
Is Z12.31 billable?
Yes. Z12.31 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to Z12.31?
The CDC tabular list gives 2 Excludes1 notes (not coded together), 1 "use additional code" note for Z12.31 and the categories above it. They are listed on this page.
What chapter is Z12.31 in?
Chapter 21. Factors influencing health status.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.