N25
N25 — Disorders resulting from impaired renal tubular function
Non-billable headerICD-10-CM
N25 is a non-billable header ICD-10-CM code for disorders resulting from impaired renal tubular function. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with N25
These codes carry an Excludes1 note pointing at N25. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading N25 alone.
Risk adjustment
N25 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code history
N25 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead N25
4 child codes. Green means billable.
Questions about N25
- Is N25 a billable ICD-10-CM code?
- No. N25 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does N25 sit in the tabular list?
- Diseases of the genitourinary system (N00-N99), in the block Other disorders of kidney and ureter (N25-N29).