Mammographic fibroglandular density, left breast

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2024 onwards.

What has happened to this code

Every change the publisher made, from 2024 to now.

FY2024 Added to the code set Mammographic fibroglandular density, left breast

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from the R90-R94 section Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94)

Excludes1 - never coded here

abnormal findings on antenatal screening of mother (O28.-)
diagnostic abnormal findings classified elsewhere - see Alphabetical Index

Includes

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

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

BI-RADS
Dense breasts
Breast > Imaging Reporting and Data System: B
Breast > Imaging Reporting and Data System: 2
Density > breast > mammographic > fibroglandular

Codes in the same group

Code	Description	Status
R92.321	Mammographic fibroglandular density, right breast	Valid
R92.323	Mammographic fibroglandular density, bilateral breasts	Valid