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.

irradiation cystitis (N30.4-)
postoophorectomy osteoporosis with current pathological fracture (M80.8-)
postoophorectomy osteoporosis without current pathological fracture (M81.8)

Other codes that can never be billed with N99

Their own Excludes1 notes name this code, so the conflict is not listed above.

Z43Encounter for attention to artificial openings
Z93Artificial opening status
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

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead N99

9 child codes. Green means billable.