N99Not billable, use a more specific code below
Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified
chapter 14: Diseases of the Genitourinary System
44 billable codes under N99: 14 are a CC; none map to an HCC.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment.
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Instructional notes
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers chronic kidney disease staging, CKD in kidney transplant patients, and sequencing CKD with related conditions such as diabetes and hypertension.
- Chronic kidney disease (page 62)
All codes under N99
N99 can't be used on a claim. Pick a billable code below; grey headings group them.
- N99.0Postprocedural (acute) (chronic) kidney failure
- N99.1Postprocedural urethral stricture
- N99.11Postprocedural urethral stricture, male
- N99.110Postprocedural urethral stricture, male, meatal
- N99.111Postprocedural bulbous urethral stricture, male
- N99.112Postprocedural membranous urethral stricture, male
- N99.113Postprocedural anterior bulbous urethral stricture, male
- N99.114Postprocedural urethral stricture, male, unspecified
- N99.115Postprocedural fossa navicularis urethral stricture
- N99.116Postprocedural urethral stricture, male, overlapping sites
- N99.12Postprocedural urethral stricture, female
- N99.2Postprocedural adhesions of vagina
- N99.3Prolapse of vaginal vault after hysterectomy
- N99.4Postprocedural pelvic peritoneal adhesions
- N99.5Complications of stoma of urinary tract
- N99.51Complication of cystostomy
- N99.510Cystostomy hemorrhage
- N99.511Cystostomy infection
- N99.512Cystostomy malfunction
- N99.518Other cystostomy complication
- N99.52Complication of incontinent external stoma of urinary tract
- N99.520Hemorrhage of incontinent external stoma of urinary tract
- N99.521Infection of incontinent external stoma of urinary tract
- N99.522Malfunction of incontinent external stoma of urinary tract
- N99.523Herniation of incontinent stoma of urinary tract
- N99.524Stenosis of incontinent stoma of urinary tract
- N99.528Other complication of incontinent external stoma of urinary tract
- N99.53Complication of continent stoma of urinary tract
- N99.530Hemorrhage of continent stoma of urinary tract
- N99.531Infection of continent stoma of urinary tract
- N99.532Malfunction of continent stoma of urinary tract
- N99.533Herniation of continent stoma of urinary tract
- N99.534Stenosis of continent stoma of urinary tract
- N99.538Other complication of continent stoma of urinary tract
- N99.6Intraoperative hemorrhage and hematoma of a genitourinary system organ or structure complicating a procedure
- N99.61Intraoperative hemorrhage and hematoma of a genitourinary system organ or structure complicating a genitourinary system procedure
- N99.62Intraoperative hemorrhage and hematoma of a genitourinary system organ or structure complicating other procedure
- N99.7Accidental puncture and laceration of a genitourinary system organ or structure during a procedure
- N99.71Accidental puncture and laceration of a genitourinary system organ or structure during a genitourinary system procedure
- N99.72Accidental puncture and laceration of a genitourinary system organ or structure during other procedure
- N99.8Other intraoperative and postprocedural complications and disorders of genitourinary system
- N99.81Other intraoperative complications of genitourinary system
- N99.82Postprocedural hemorrhage of a genitourinary system organ or structure following a procedure
- N99.820Postprocedural hemorrhage of a genitourinary system organ or structure following a genitourinary system procedure
- N99.821Postprocedural hemorrhage of a genitourinary system organ or structure following other procedure
- N99.83Residual ovary syndrome
- N99.84Postprocedural hematoma and seroma of a genitourinary system organ or structure following a procedure
- N99.840Postprocedural hematoma of a genitourinary system organ or structure following a genitourinary system procedure
- N99.841Postprocedural hematoma of a genitourinary system organ or structure following other procedure
- N99.842Postprocedural seroma of a genitourinary system organ or structure following a genitourinary system procedure
- N99.843Postprocedural seroma of a genitourinary system organ or structure following other procedure
- N99.85Post endometrial ablation syndrome
- N99.86Intraoperative and postprocedural complications and disorders of breast
- N99.860Intraoperative and postprocedural nipple ischemia
- N99.861Intraoperative and postprocedural nipple necrosis
- N99.89Other postprocedural complications and disorders of genitourinary system
N99 MS-DRGs
As the principal diagnosis, the billable codes under N99 group to these 18 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 698 Other Kidney and Urinary Tract Diagnoses with MCC (19 of 44 codes)
- DRG 699 Other Kidney and Urinary Tract Diagnoses with CC (19 of 44 codes)
- DRG 700 Other Kidney and Urinary Tract Diagnoses without CC/MCC (19 of 44 codes)
- DRG 791 Prematurity with Major Problems (17 of 44 codes)
- DRG 793 Full Term Neonate with Major Problems (17 of 44 codes)
- DRG 919 Complications of Treatment with MCC (10 of 44 codes)
- DRG 920 Complications of Treatment with CC (10 of 44 codes)
- DRG 921 Complications of Treatment without CC/MCC (10 of 44 codes)
- DRG 697 Urethral Stricture (8 of 44 codes)
- DRG 760 Menstrual and Other Female Reproductive System Disorders with CC/MCC (4 of 44 codes)
- DRG 761 Menstrual and Other Female Reproductive System Disorders without CC/MCC (4 of 44 codes)
- DRG 742 Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC (3 of 44 codes)
- DRG 743 Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC (3 of 44 codes)
- DRG 600 Non-Malignant Breast Disorders with CC/MCC (2 of 44 codes)
- DRG 601 Non-Malignant Breast Disorders without CC/MCC (2 of 44 codes)
- DRG 393 Other Digestive System Diagnoses with MCC (1 of 44 codes)
- DRG 394 Other Digestive System Diagnoses with CC (1 of 44 codes)
- DRG 395 Other Digestive System Diagnoses without CC/MCC (1 of 44 codes)
Other codes that refer to N99
Notes on these codes point to N99.
- O99.8 Includes: Conditions in D00-D48, H00-H95, M00-N99, and Q00-Q99
- T80-T88 Excludes2: intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)
- T81 Excludes2: intraoperative and postprocedural complications of specific body system (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95, K91.-, L76.-, M96.-, N99.-)
- Z84.2 Includes: Conditions classifiable to N30-N99
- Z87.4 Includes: Conditions classifiable to N00-N99
Code history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.