N99.512

Billable

Cystostomy malfunction

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

The cystostomy stops functioning properly, meaning urine is not draining correctly through the surgically created bladder opening. This may involve blockage, leakage, or other mechanical failure.

Coding Tips

•Document the specific type of malfunction (obstruction, leakage, displacement) when available
•Ensure the cystostomy is confirmed to be present and the malfunction is not due to patient error

Clinical Significance

Cystostomy malfunction represents a serious complication requiring immediate intervention to restore proper urinary drainage and prevent infection or kidney damage. This condition significantly impacts patient quality of life and requires ongoing specialized care management.

Documentation Requirements

✓Documentation of existing cystostomy tube or catheter
✓Description of specific malfunction (blockage, leakage, dislodgement)
✓Clinical signs and symptoms of malfunction
✓Date when malfunction was identified
✓Impact on urinary drainage function
✓Any interventions attempted or planned
✓Provider assessment of the complication severity

Commonly Confused Codes

N99.511 — Cystostomy hemorrhage (bleeding from cystostomy site)T83.010A — Breakdown of cystostomy catheter, initial encounter (device-specific complication)N32.9 — Bladder disorder, unspecified (not specifically cystostomy-related)N99.518 — Other cystostomy complication (non-malfunction complications)

Code Hierarchy

└N99Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified └N99.5Complications of stoma of urinary tract └N99.51Complication of cystostomy └N99.512Cystostomy malfunction

└N99.512Cystostomy malfunction