MCMCB Pro
N14

N14Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions

Non-billable headerICD-10-CM

N14 is a non-billable header ICD-10-CM code for drug- and heavy-metal-induced tubulo-interstitial and tubular conditions. It cannot be billed on its own: choose one of the more specific child codes below.

Code first

The underlying condition must be sequenced before this code.

  • poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4)

Use additional code

Add a secondary code to capture the detail described below.

  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Risk adjustment

N14 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 to one of these instead N14

5 child codes. Green means billable.

Questions about N14

Is N14 a billable ICD-10-CM code?
No. N14 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does N14 sit in the tabular list?
Diseases of the genitourinary system (N00-N99), in the block Renal tubulo-interstitial diseases (N10-N16).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.