N99
N99 — Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified
Non-billable headerICD-10-CM
N99 is a non-billable header ICD-10-CM code for intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
Other codes that can never be billed with N99
These codes carry an Excludes1 note pointing at N99. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading N99 alone.
- N35Urethral stricture
- N35.0Post-traumatic urethral stricture
- N35.8Other urethral stricture
- N81Female genital prolapse
- N89.5Stricture and atresia of vagina
- N99.6Intraoperative hemorrhage and hematoma of a genitourinary system organ or structure complicating a procedure
- Z43Encounter for attention to artificial openings
- Z93Artificial opening status
Risk adjustment
N99 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
9 child codes. Green means billable.
- N99.0Postprocedural (acute) (chronic) kidney failure
- N99.1Postprocedural urethral stricture
- N99.2Postprocedural adhesions of vagina
- N99.3Prolapse of vaginal vault after hysterectomy
- N99.4Postprocedural pelvic peritoneal adhesions
- N99.5Complications of stoma of urinary tract
- N99.6Intraoperative hemorrhage and hematoma of a genitourinary system organ or structure complicating a procedure
- N99.7Accidental puncture and laceration of a genitourinary system organ or structure during a procedure
- N99.8Other intraoperative and postprocedural complications and disorders of genitourinary system
Questions about N99
- Is N99 a billable ICD-10-CM code?
- No. N99 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does N99 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).