Skip to content
Dx

ICD-10-CM 2027 diagnosis code

R92.1Mammographic calcification found on diagnostic imaging of breast

✓ Billable / specific

R92.1 is a valid, billable ICD-10-CM code for mammographic calcification found on diagnostic imaging of breast. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Mammographic calcifcn found on diagnostic imaging of breast

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About R92.1

R92.1 is the ICD-10-CM diagnosis code for Mammographic calcification found on diagnostic imaging of breast. It belongs to category R92 (abnormal and inconclusive findings on diagnostic imaging of breast), block R90-R94 (abnormal findings on diagnostic imaging and in function studies, without diagnosis) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within R92 (abnormal and inconclusive findings on diagnostic imaging of breast), R92.1 is specifically for Mammographic calcification found on diagnostic imaging of breast. Related codes cover Mammographic microcalcification found on diagnostic imaging of breast (R92.0), inconclusive mammogram (R92.2), Mammographic density found on imaging of breast (R92.3) and other abnormal and inconclusive findings on diagnostic imaging of breast (R92.8).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 600 (Non-Malignant Breast Disorders with CC/MCC, relative weight 0.9975) and DRG 601 (Non-Malignant Breast Disorders without CC/MCC, relative weight 0.6017), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 793.89 (other (abnormal) findings on radiological examination of breast).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Mammographic calculus found on diagnostic imaging of breast

Notes that apply from higher levels

Instructions written at a parent level also apply to R92.1.

Broader instructions also apply from R90-R94 Abnormal findings on diagnostic imaging and in function studies, without diagnosis and Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

Alphabetic index entries

4 entries

Terms in the official ICD-10-CM index that lead to R92.1.

Codes whose notes reference R92.1

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

MDC 09 · Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast

ICD-9-CM equivalent

Converter →
  • 793.89Other (abnormal) findings on radiological examination of breastapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about R92.1

Is R92.1 billable?

Yes. R92.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can R92.1 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict R92.1 as a principal diagnosis.

Is R92.1 a CC or MCC?

No. R92.1 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does R92.1 group to?

R92.1 is used in the MS-DRG v44.0 logic for MS-DRG 600 (Non-Malignant Breast Disorders with CC/MCC) and MS-DRG 601 (Non-Malignant Breast Disorders without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for R92.1?

The CMS General Equivalence Mappings map R92.1 to ICD-9-CM 793.89.