Abnormal and inconclusive findings on diagnostic imaging of breast
In Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94), chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings
17 billable codes under R92: none are a CC or MCC; none map to an HCC.
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Instructional notes
Also applies, from Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94)
These notes sit on R90-R94 and apply to every code under it, including R92.
Includes: conditions that are coded here
- nonspecific abnormal findings on diagnostic imaging by computerized axial tomography [CAT scan]
- nonspecific abnormal findings on diagnostic imaging by magnetic resonance imaging [MRI][NMR]
- nonspecific abnormal findings on diagnostic imaging by positron emission tomography [PET scan]
- nonspecific abnormal findings on diagnostic imaging by thermography
- nonspecific abnormal findings on diagnostic imaging by ultrasound [echogram]
- nonspecific abnormal findings on diagnostic imaging by X-ray examination
Excludes1: not coded here, use a different code
- abnormal findings on antenatal screening of mother (O28.-)
- diagnostic abnormal findings classified elsewhere - see Alphabetical Index
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers when to report symptom, sign, and abnormal finding codes (R00-R99), plus specific rules for falls, coma scales, non-infectious SIRS, death NOS, and NIHSS scores.
- Use of symptom codes (page 75)
- Use of a symptom code with a definitive diagnosis code (page 75)
- Combination codes that include symptoms (page 75)
- Repeated falls (page 76)
- Coma (page 76)
- Functional quadriplegia (page 76)
- SIRS due to Non-Infectious Process (page 77)
- Death NOS (page 77)
All codes under R92
R92 can't be used on a claim. Pick a billable code below; grey headings group them.
- R92.0Mammographic microcalcification found on diagnostic imaging of breast
- R92.1Mammographic calcification found on diagnostic imaging of breast
- R92.2Inconclusive mammogram
- R92.3Mammographic density found on imaging of breast
- R92.30Dense breasts, unspecified
- R92.31Mammographic fatty tissue density of breast
- R92.311Mammographic fatty tissue density, right breast
- R92.312Mammographic fatty tissue density, left breast
- R92.313Mammographic fatty tissue density, bilateral breasts
- R92.32Mammographic fibroglandular density of breast
- R92.321Mammographic fibroglandular density, right breast
- R92.322Mammographic fibroglandular density, left breast
- R92.323Mammographic fibroglandular density, bilateral breasts
- R92.33Mammographic heterogeneous density of breast
- R92.331Mammographic heterogeneous density, right breast
- R92.332Mammographic heterogeneous density, left breast
- R92.333Mammographic heterogeneous density, bilateral breasts
- R92.34Mammographic extreme density of breast
- R92.341Mammographic extreme density, right breast
- R92.342Mammographic extreme density, left breast
- R92.343Mammographic extreme density, bilateral breasts
- R92.8Other abnormal and inconclusive findings on diagnostic imaging of breast
R92 MS-DRGs
As the principal diagnosis, all 17 billable codes under R92 group to MS-DRG 600 or 601 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
Other codes that refer to R92
Notes on these codes point to R92.
- N64.5 Excludes2: abnormal findings on diagnostic imaging of breast (R92.-)
Code history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.