N99.532

Billable

Malfunction of continent stoma of urinary tract

HCC Category Mapping

V24HCC 176 — Complications of Specified Implanted Device or Graft

0.529

ESRDHCC 176 — Complications of Specified Implanted Device or Graft

0.000

What This Code Means

Failure or improper functioning of a surgically created urine drainage opening that controls urine flow.

Coding Tips

•Malfunction may include catheter obstruction, leakage, or valve failure; document specific dysfunction
•Distinguish from stenosis, which is a structural narrowing

Clinical Significance

Malfunction of a continent urinary stoma represents failure of a complex surgical construction designed to maintain continence while allowing catheterizable access. This complication often requires surgical revision and significantly impacts patient quality of life and independence.

Documentation Requirements

✓Documentation of continent urinary stoma type
✓Specific description of malfunction (valve failure, channel problems)
✓Impact on continence and catheterization ability
✓Associated symptoms or complications
✓Duration of malfunction symptoms
✓Diagnostic studies performed
✓Surgical consultation or revision plans

Commonly Confused Codes

N99.522 — Malfunction of incontinent external stoma (incontinent vs continent)N99.534 — Stenosis of continent stoma (stenosis vs general malfunction)N99.533 — Herniation of continent stoma (herniation vs malfunction)T83.010A — Breakdown of cystostomy catheter (catheter vs stoma malfunction)

Code Hierarchy

└N99Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified └N99.5Complications of stoma of urinary tract └N99.53Complication of continent stoma of urinary tract └N99.532Malfunction of continent stoma of urinary tract

└N99.532Malfunction of continent stoma of urinary tract