Is N99.51 a billable ICD-10-CM code?

No. N99.51 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does N99.51 sit in the tabular list?

Diseases of the genitourinary system (N00-N99), in the block Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified (N99).

N99.51

N99.51 — Complication of cystostomy

Non-billable headerICD-10-CM

N99.51 is a non-billable header ICD-10-CM code for complication of cystostomy. It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

N99.51 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 N99.51

4 child codes. Green means billable.

Related codes at this level

Codes that share N99.5. If N99.51 is not quite right, the correct code is usually one of these.

Questions about N99.51

Is N99.51 a billable ICD-10-CM code?: No. N99.51 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does N99.51 sit in the tabular list?: Diseases of the genitourinary system (N00-N99), in the block Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified (N99).