R92.321Billable
Mammographic fibroglandular density, right breast
- Chapter
- 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
- Category
- R92
- Effective date
- October 1, 2026
Related codes in category R92
R92Abnormal and inconclusive findings on dx imaging of breastR92.0Mammographic microcalcification found on dx imaging of brstYesR92.1Mammographic calcifcn found on diagnostic imaging of breastYesR92.2Inconclusive mammogramYesR92.3Mammographic density found on imaging of breastR92.30Dense breasts, unspecifiedYesR92.31Mammographic fatty tissue density of breastR92.311Mammographic fatty tissue density, right breastYesR92.312Mammographic fatty tissue density, left breastYesR92.313Mammographic fatty tissue density, bilateral breastsYesR92.32Mammographic fibroglandular density of breastR92.322Mammographic fibroglandular density, left breastYes
Frequently asked questions
What is ICD-10 code R92.321?
R92.321 is an ICD-10-CM diagnosis code for Mammographic fibroglandular density, right breast.
Is R92.321 a billable code?
Yes. R92.321 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is R92.321 in?
R92.321 falls under Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.
When did R92.321 become effective?
R92.321 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to R92.321?
R92.321 belongs to category R92, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.