ICD-10 R92.0 Conversion to ICD-9 793.81

ICD-10 to ICD-9 Crossover Result

ICD-10 Code R92.0 representing "Mammographic microcalcification found on dx imaging of brst" can be backward-mapped to its ICD-9 equivalent 793.81: "Mammographic microcalcif". This is a direct match with no additional mapping qualifiers. The absence of a flag generally means the mapping is considered exact or precise. In other words, the ICD-10 code maps cleanly to the ICD-9 code without qualification, approximation, or needing multiple codes. This conversion was generated using the latest General Equivalence Mappings (GEMs). While these mappings provide a standardized reference, not all ICD-10 codes have an exact ICD-9 match. Review the table below carefully and consider the clinical context when interpreting the mapped codes.

ICD‑10 Code

R92.0

Mammographic microcalcification found on dx imaging of brst

ICD‑9 Code

793.81

Mammographic microcalcif

– This is a direct match with no additional mapping qualifiers.

ICD‑10 Code

R92.1

Mammographic calcifcn found on diagnostic imaging of breast

ICD‑9 Code

793.89

Abn finding-breast NEC

Approximate Flag – This ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option and may not fully capture the original diagnosis.

ICD‑10 Code

R92.2

Inconclusive mammogram

ICD‑9 Code

793.82

Inconclusive mammogram

– This is a direct match with no additional mapping qualifiers.

ICD‑10 Code

R92.8

Oth abn and inconclusive findings on dx imaging of breast

ICD‑9 Code

793.80

Ab mammogram NOS

Approximate Flag – This ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option and may not fully capture the original diagnosis.

ICD‑10 Code

R92.8

Oth abn and inconclusive findings on dx imaging of breast

ICD‑9 Code

793.89

Abn finding-breast NEC

Approximate Flag – This ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option and may not fully capture the original diagnosis.

About the General Equivalence Mappings Crossover Tool

The General Equivalence Mappings tool is a standardized crossover resource developed by the Centers for Medicare & Medicaid Services (CMS) and the National Center for Health Statistics (NCHS). It was created to help healthcare providers, coders, payers, and software vendors accurately transition between ICD-9 and ICD-10 diagnosis codes.

This ICD-10 to ICD-9 crosswalk tool supports both forward and backward mapping, making it valuable for converting legacy data, conducting audits, updating medical coding systems, and ensuring compliance with ICD-10 standards. GEMs are especially helpful when analyzing historical claims, aligning reimbursement logic, or migrating between systems.

Because not all ICD codes have a direct match, users should interpret each mapping carefully. Some ICD-10 to ICD-9 conversions may require clinical judgment or additional documentation to ensure coding accuracy. Not all ICD-10 to ICD-9 code conversions result in a single, exact match. In some cases, an ICD-10 code may map to multiple ICD-9 codes, especially when the original diagnosis requires more than one code to fully capture its meaning in the older coding system.