N99.522

Billable

Malfunction of incontinent external 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

An incontinent external urinary stoma stops functioning properly, meaning urine is not draining correctly through the surgically created opening. This may involve blockage, leakage, or mechanical failure.

Coding Tips

•Document the specific malfunction type (obstruction, leakage, retraction, stenosis) when documented
•Ensure the stoma is confirmed to be incontinent and external

Clinical Significance

Malfunction of an incontinent external urinary stoma compromises proper urine drainage and can lead to serious complications including infection, skin breakdown, and kidney dysfunction. This condition requires immediate intervention to restore proper stoma function.

Documentation Requirements

✓Documentation of incontinent external urinary stoma type
✓Specific description of malfunction (blockage, retraction, prolapse)
✓Impact on urinary drainage and output
✓Associated symptoms or complications
✓Duration of malfunction
✓Interventions attempted or planned
✓Provider assessment of functional status

Commonly Confused Codes

N99.523 — Herniation of incontinent stoma (herniation vs general malfunction)N99.524 — Stenosis of incontinent stoma (stenosis vs other malfunction)T83.010A — Breakdown of cystostomy catheter (catheter vs stoma malfunction)N99.532 — Malfunction of continent stoma (continent vs incontinent stoma)

Code Hierarchy

└N99Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified └N99.5Complications of stoma of urinary tract └N99.52Complication of incontinent external stoma of urinary tract └N99.522Malfunction of incontinent external stoma of urinary tract

└N99.522Malfunction of incontinent external stoma of urinary tract