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N99.51

Non-billable

Complication of cystostomy

N99.51 is the ICD-10-CM code for Complication of cystostomy. It is a non-billable category code — use a more specific child code such as N99.510 for billing.

Status
Header (non-billable)
Chapter
N00-N99
Parent
N99.5
Subcodes
4
Edition
FY2026

N00-N99 Diseases of the genitourinary system

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code N99.51?
N99.51 is the ICD-10-CM code for "Complication of cystostomy". It falls under N00-N99 Diseases of the genitourinary system.
Is N99.51 a billable code?
No — N99.51 is a non-billable header code. Use a more specific child code (such as N99.510) for billing.
What are the subcodes of N99.51?
N99.51 has 4 more specific child codes, including N99.510, N99.511, N99.512.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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