N13.3
Non-billableOther and unspecified hydronephrosis
N13.3 is the ICD-10-CM code for Other and unspecified hydronephrosis. It is a non-billable category code — use a more specific child code such as N13.30 for billing.
N00-N99 Diseases of the genitourinary system
Excludes1 — not coded here
- •hydronephrosis with infection (N13.6)
Frequently asked questions
- What is ICD-10 code N13.3?
- N13.3 is the ICD-10-CM code for "Other and unspecified hydronephrosis". It falls under N00-N99 Diseases of the genitourinary system.
- Is N13.3 a billable code?
- No — N13.3 is a non-billable header code. Use a more specific child code (such as N13.30) for billing.
- What is excluded from N13.3?
- Excludes1 (not coded here): hydronephrosis with infection (N13.6).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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