Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified (N99) ICD-10-CM
The N99 code range covers intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified with 54 ICD-10-CM diagnosis codes. 42 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the N99 Range 54 codes · 42 billable
- N99 Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classifiedNon-billable
- N99.0 Postprocedural (acute) (chronic) kidney failure
- N99.1 Postprocedural urethral strictureNon-billable
- N99.11 Postprocedural urethral stricture, maleNon-billable
- N99.110 Postprocedural urethral stricture, male, meatal
- N99.111 Postprocedural bulbous urethral stricture, male
- N99.112 Postprocedural membranous urethral stricture, male
- N99.113 Postprocedural anterior bulbous urethral stricture, male
- N99.114 Postprocedural urethral stricture, male, unspecified
- N99.115 Postprocedural fossa navicularis urethral stricture
- N99.116 Postprocedural urethral stricture, male, overlapping sites
- N99.12 Postprocedural urethral stricture, female
- N99.2 Postprocedural adhesions of vagina
- N99.3 Prolapse of vaginal vault after hysterectomy
- N99.4 Postprocedural pelvic peritoneal adhesions
- N99.5 Complications of stoma of urinary tractNon-billable
- N99.51 Complication of cystostomyNon-billable
- N99.510 Cystostomy hemorrhage
- N99.511 Cystostomy infection
- N99.512 Cystostomy malfunction
- N99.518 Other cystostomy complication
- N99.52 Complication of incontinent external stoma of urinary tractNon-billable
- N99.520 Hemorrhage of incontinent external stoma of urinary tract
- N99.521 Infection of incontinent external stoma of urinary tract
- N99.522 Malfunction of incontinent external stoma of urinary tract
- N99.523 Herniation of incontinent stoma of urinary tract
- N99.524 Stenosis of incontinent stoma of urinary tract
- N99.528 Other complication of incontinent external stoma of urinary tract
- N99.53 Complication of continent stoma of urinary tractNon-billable
- N99.530 Hemorrhage of continent stoma of urinary tract
- N99.531 Infection of continent stoma of urinary tract
- N99.532 Malfunction of continent stoma of urinary tract
- N99.533 Herniation of continent stoma of urinary tract
- N99.534 Stenosis of continent stoma of urinary tract
- N99.538 Other complication of continent stoma of urinary tract
- N99.6 Intraoperative hemorrhage and hematoma of a genitourinary system organ or structure complicating a procedureNon-billable
- N99.61 Intraoperative hemorrhage and hematoma of a genitourinary system organ or structure complicating a genitourinary system procedure
- N99.62 Intraoperative hemorrhage and hematoma of a genitourinary system organ or structure complicating other procedure
- N99.7 Accidental puncture and laceration of a genitourinary system organ or structure during a procedureNon-billable
- N99.71 Accidental puncture and laceration of a genitourinary system organ or structure during a genitourinary system procedure
- N99.72 Accidental puncture and laceration of a genitourinary system organ or structure during other procedure
- N99.8 Other intraoperative and postprocedural complications and disorders of genitourinary systemNon-billable
- N99.81 Other intraoperative complications of genitourinary system
- N99.82 Postprocedural hemorrhage of a genitourinary system organ or structure following a procedureNon-billable
- N99.820 Postprocedural hemorrhage of a genitourinary system organ or structure following a genitourinary system procedure
- N99.821 Postprocedural hemorrhage of a genitourinary system organ or structure following other procedure
- N99.83 Residual ovary syndrome
- N99.84 Postprocedural hematoma and seroma of a genitourinary system organ or structure following a procedureNon-billable
- N99.840 Postprocedural hematoma of a genitourinary system organ or structure following a genitourinary system procedure
- N99.841 Postprocedural hematoma of a genitourinary system organ or structure following other procedure
- N99.842 Postprocedural seroma of a genitourinary system organ or structure following a genitourinary system procedure
- N99.843 Postprocedural seroma of a genitourinary system organ or structure following other procedure
- N99.85 Post endometrial ablation syndrome
- N99.89 Other postprocedural complications and disorders of genitourinary system
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the N99 range.
Anuria
Absence of urine formation. It is usually associated with complete bilateral ureteral (URETER) obstruction, complete lower urinary tract obstruction, or unilateral ureteral obstruction when a solitary kidney is present.
Oliguria
Decreased URINE output that is below the normal range. Oliguria can be defined as urine output of less than or equal to 0.5 or 1 ml/kg/hr depending on the age.
Ureter
One of a pair of thick-walled tubes that transports urine from the KIDNEY PELVIS to the URINARY BLADDER.
Urine
Liquid by-product of excretion produced in the kidneys, temporarily stored in the bladder until discharge through the URETHRA.
About the N99 Code Range
The ICD-10 code section N99 is used to classify intraoperative and postprocedural complications and disorders of the genitourinary system that are not classified elsewhere. This includes complications arising during or after procedures involving the urinary tract and reproductive organs.
This section covers a variety of specific complications, such as postprocedural kidney failure (N99.0), which includes acute kidney injury following procedures, sometimes called postoperative renal impairment. It also details multiple types of postprocedural urethral strictures (N99.1 series) — narrowed sections of the urethra after surgery, with subcodes for male and female strictures and exact locations like meatal or bulbous urethral stricture. Additional codes address adhesions and prolapses post-hysterectomy (N99.2, N99.3), as well as complications related to urinary stomas, such as infections, hemorrhage, or malfunction (N99.5 series). Intraoperative hemorrhages and accidental punctures during genitourinary procedures are captured by codes N99.6 and N99.7. The section also includes other less common but significant disorders like post endometrial ablation syndrome (N99.85) and residual ovary syndrome (N99.83).
Medical coders searching for the ICD-10 code for urinary complications following surgery, such as post-catheterization urethral stricture or hemorrhage after cystostomy, will find these codes essential for capturing specific genitourinary procedural complications. Using the synonyms provided (e.g., postoperative urethral stricture, ovarian remnant syndrome, cystostomy hemorrhage) helps ensure accurate coding and clarity when documenting genitourinary system complications not classified elsewhere.
Questions About This Page
How many billable codes are in the N99 range?
Of the 54 codes in this range, 42 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the N99 range classify?
The range classifies intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
