ICD-10-CM · Chapter 14 · N00–N99
N18.9
Chronic kidney disease, unspecified
Diseases of the genitourinary system
Quick facts
- Code
- N18.9
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 14 — Diseases of the genitourinary system
- Category
- N18 — Chronic kidney disease (CKD)
- Specificity
- 4 characters
How coders use this code
ICD-10-CM N18.9 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of chronic kidney disease, unspecified. 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.
Related codes in N18
- N18Chronic kidney disease (CKD)
- N18.1Chronic kidney disease, stage 1
- N18.2Chronic kidney disease, stage 2 (mild)
- N18.3Chronic kidney disease, stage 3 (moderate)
- N18.30Chronic kidney disease, stage 3 unspecified
- N18.31Chronic kidney disease, stage 3a
- N18.32Chronic kidney disease, stage 3b
- N18.4Chronic kidney disease, stage 4 (severe)
- N18.5Chronic kidney disease, stage 5
- N18.6End stage renal disease
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