ICD-10-CM · Chapter 14 · N00–N99
N18.2
Chronic kidney disease, stage 2 (mild)
Diseases of the genitourinary system
Quick facts
- Code
- N18.2
- 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 N18.2 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of chronic kidney disease, stage 2 (mild). 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
- N18.3Chronic 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
- N18.9Chronic kidney disease, unspecified
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