N27
N27: Small kidney of unknown cause
Non-billable headerICD-10-CM
N27 is a non-billable header ICD-10-CM code for small kidney of unknown cause. It cannot be billed on its own: choose one of the more specific child codes below.
Includes
Conditions this code covers.
- oligonephronia
Other codes that can never be billed with N27
Their own Excludes1 notes name this code, so the conflict is not listed above.
- N26Unspecified contracted kidney
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead N27
3 child codes. Green means billable.