Is N18.3 a billable ICD-10-CM code?

No. N18.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does N18.3 sit in the tabular list?

Diseases of the genitourinary system (N00-N99), in the block Acute kidney failure and chronic kidney disease (N17-N19).

N18.3

N18.3 — Chronic kidney disease, stage 3 (moderate)

Non-billable headerICD-10-CM

N18.3 is a non-billable header ICD-10-CM code for chronic kidney disease, stage 3 (moderate). It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

N18.3 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.

There’s a guided path to this code

Not sure N18.3 is the right one? Answer a few questions about what the chart documents and we’ll walk you to the code that follows from it.

Type 2 diabetes: chart note to code

Code to one of these instead N18.3

3 child codes. Green means billable.

Related codes at this level

Codes that share N18. If N18.3 is not quite right, the correct code is usually one of these.

Questions about N18.3

Is N18.3 a billable ICD-10-CM code?: No. N18.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does N18.3 sit in the tabular list?: Diseases of the genitourinary system (N00-N99), in the block Acute kidney failure and chronic kidney disease (N17-N19).