ICD-10-CM · Chapter 14 · N00–N99
N12
Tubulo-interstitial nephritis, not specified as acute or chronic
Diseases of the genitourinary system
Quick facts
- Code
- N12
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 14 — Diseases of the genitourinary system
- Category
- N12
- Specificity
- 3 characters
How coders use this code
ICD-10-CM N12 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of tubulo-interstitial nephritis, not specified as acute or chronic. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
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