N99 – Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified

ICD-10-CM 2027 diagnosis code · Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified (N99)

Non-billable header

ICD-10-CM code N99

Code: N99 (claims format: N99)
Description: Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified
Short description: Intraop and postproc comp and disorders of GU sys, NEC
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 14. Diseases of the genitourinary system (N00-N99)
Block: N99 Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified (N99)

Billable codes under N99

N99 is a header code and cannot be used on claims. Choose the most specific code:

N99.0 – Postprocedural (acute) (chronic) kidney failureBillable
N99.1 – Postprocedural urethral strictureHeader (more codes below)
N99.2 – Postprocedural adhesions of vaginaBillable
N99.3 – Prolapse of vaginal vault after hysterectomyBillable
N99.4 – Postprocedural pelvic peritoneal adhesionsBillable
N99.5 – Complications of stoma of urinary tractHeader (more codes below)
N99.6 – Intraoperative hemorrhage and hematoma of a genitourinary system organ or structure complicating a procedureHeader (more codes below)
N99.7 – Accidental puncture and laceration of a genitourinary system organ or structure during a procedureHeader (more codes below)
N99.8 – Other intraoperative and postprocedural complications and disorders of genitourinary systemHeader (more codes below)

Notes for N99

Excludes2 (not included here):

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

Frequently asked questions

What is ICD-10 code N99?

N99 is the ICD-10-CM code for intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified, in the block N99 (Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified (N99)).

Is N99 a billable code?

No. N99 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.