ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
DiagnosesAnnual Mammogram

Annual Mammogram

ICD-10 Coding for Annual Mammogram(Z12.31)

PRIMARY SPECIALTYRadiology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Annual Mammogram?
Essential facts and insights about Annual Mammogram

Key Clinical Considerations:

  • No specific clinical signs or symptoms are required for an annual mammogram as it is a preventive screening procedure.
  • Laboratory findings are not applicable; however, prior mammogram results may be referenced.
  • Physical examination findings are not required for the procedure itself, but any breast abnormalities noted during a clinical breast exam should be documented.
  • Imaging findings from the mammogram will be documented, including breast density and any detected abnormalities.
  • Severity criteria or staging information is not applicable for screening mammograms, as they are preventive in nature.

Clinical Information

Clinical Criteria & Documentation Requirements

  • The medical record must include the reason for the mammogram, typically as part of routine screening.
  • Specific terminology such as 'annual screening mammogram' should be documented.
  • Documentation examples include noting the patient's age, risk factors, and any previous mammogram results.
  • Medical necessity documentation should include patient age, family history of breast cancer, and any personal history of breast disease.
  • Quality measure documentation needs to include adherence to screening guidelines based on age and risk factors.

Coding Guidelines

Usage Guidelines & Examples

  • Use Z12.31 for routine screening mammograms in asymptomatic women aged 40 and older.
  • Do NOT use this code for diagnostic mammograms or for patients with symptoms such as breast lumps or pain.
  • Similar codes include Z12.39 for other screening for malignant neoplasms of the breast and Z80.3 for family history of breast cancer.
  • Common coding errors include using Z12.31 for diagnostic purposes or failing to document the screening nature of the visit.
  • In complex cases, ensure to differentiate between screening and diagnostic mammograms to select the appropriate code.

Code Exclusions

Important Exclusions

  • Excluded conditions include breast cancer diagnosis or any symptomatic breast conditions.
  • Alternative codes for excluded conditions include C50 for malignant neoplasm of breast.
  • Conditions are excluded because Z12.31 is specifically for screening, not diagnosis.
  • Common exclusion mistakes include using Z12.31 for patients with breast symptoms.
  • Related but distinct conditions include benign breast conditions that may require different coding.

Related ICD-10 Codes

Primary Codes
Z12.31
Encounter for screening mammogram for malignant neoplasm of breast
Z12.39
Encounter for other screening for malignant neoplasm of breast
Ancillary Codes
Z80.3
Z85.3
Differential Codes
R92.8
R92.8
for diagnostic mammograms following abnormal screening results.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Radiology

Specialty Applications

  • This applies to women aged 40 and older for routine screening.
  • Patient populations include women with a family history of breast cancer or other risk factors.
  • Clinical settings include outpatient radiology departments and women's health clinics.
  • Specialty-specific applications are relevant in radiology and oncology.
  • Treatment contexts include preventive care and routine health maintenance.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Template 1

Template: 'Patient diagnosed with [condition] based on [clinical findings]'

Template 2

Template: 'Clinical presentation consistent with [diagnosis] including [symptoms]'

Template 3

Template: 'Annual screening mammogram performed as part of routine preventive care.'

Template 4

Template: 'Treatment plan initiated for [condition] with [interventions]'

Template 5

Template: 'Follow-up care for [diagnosis] including [monitoring parameters]'

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

What documentation is required for this diagnosis?

Documentation should include the patient's age, risk factors, and the purpose of the mammogram.

How does this differ from similar diagnoses?

Z12.31 is specifically for screening, while other codes may pertain to diagnostic evaluations.

What are common billing considerations?

Ensure that the procedure is coded as a screening to optimize reimbursement.

What procedures are typically associated?

CPT codes for mammography procedures, such as 77067 for digital mammography.

Are there any quality reporting implications?

Yes, adherence to screening guidelines is often reported for quality measures.