N99.534

Billable

Stenosis 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

Narrowing or tightening of a surgically created urine drainage opening that controls urine flow.

Coding Tips

•Stenosis is a structural narrowing; ensure this is distinguished from functional malfunction
•Document whether stenosis is partial or complete obstruction

Clinical Significance

Stenosis of a continent urinary stoma compromises the catheterizable access essential for bladder emptying while potentially affecting the continence mechanism. This complication often requires surgical intervention to restore adequate caliber for catheterization and maintain continence function.

Documentation Requirements

✓Documentation of continent urinary stoma presence
✓Evidence of stoma channel narrowing or stricture
✓Impact on catheterization ability
✓Effect on continence mechanism
✓Associated symptoms (difficulty catheterizing, pain)
✓Diagnostic studies (cystoscopy, contrast studies)
✓Treatment interventions (dilation, surgical revision)

Commonly Confused Codes

N99.524 — Stenosis of incontinent stoma (incontinent vs continent stoma)N35.9 — Urethral stricture, unspecified (urethral vs stoma stenosis)N99.532 — Malfunction of continent stoma (general malfunction vs stenosis)N13.5 — Crossing vessel and stricture of ureter without hydronephrosis

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 └N99.534Stenosis of continent stoma of urinary tract

└N99.534Stenosis of continent stoma of urinary tract