Abnormal and inconclusive findings on diagnostic imaging of breast (R92) ICD-10-CM

About the R92 Code Range

The ICD-10 code R92 category covers abnormal and inconclusive results found in breast diagnostic imaging, such as mammograms. These codes are used when imaging reveals unusual breast findings without a definitive diagnosis.

Codes like R92.0 and R92.1 identify mammographic microcalcifications and calcifications, respectively, which are tiny calcium deposits seen on breast X-rays and can indicate early breast changes. The term “mammographic calcification” is commonly referenced in reports and helps coders link these findings to the correct code. R92.2 represents an inconclusive mammogram where breast density or other factors make interpretation difficult, capturing terms like “heterogeneously dense breast composition” and the need for additional imaging. The section also includes codes for varying breast tissue densities (R92.30–R92.34), such as fatty or fibroglandular densities, which are important for assessing breast cancer risk.

Finally, R92.8 covers other abnormal or ambiguous breast imaging findings, including asymmetries, skin retraction, or suspicious masses, referenced in clinical descriptors like “mammography assessment category 4” indicating suspicion of malignancy. These ICD-10 codes assist healthcare providers and coders in accurately documenting unclear or atypical breast imaging results to guide further evaluation.