N28.81

N28.81: Hypertrophy of kidney

Billable / specific codeICD-10-CM

N28.81 is a billable, specific ICD-10-CM code for hypertrophy of kidney. It is valid for submission on a claim.

Check N28.81 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above N28.81

A category’s note binds every code beneath it.

Written on N28.8: Other specified disorders of kidney and ureter

hydroureter (N13.4)
ureteric stricture with hydronephrosis (N13.1)
ureteric stricture without hydronephrosis (N13.5)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

N28.81 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A55336Billing and Coding: Retroperitoneal Ultrasound
A56421Billing and Coding: CT of the Abdomen and Pelvis

Alphabetic index entries that lead here

Hypertrophy, hypertrophic›kidney(compensatory)

Code history

Unchanged in every release from FY2024 to FY2027.