N18.3 – Chronic kidney disease, stage 3 (moderate)
ICD-10-CM 2027 diagnosis code · Acute kidney failure and chronic kidney disease
ICD-10-CM code
N18.3
- Code
N18.3(claims format:N183)- Description
- Chronic kidney disease, stage 3 (moderate)
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 14. Diseases of the genitourinary system (N00-N99)
- Block
- N17-N19 Acute kidney failure and chronic kidney disease
- Parent codes
- N18
Billable codes under N18.3
N18.3 is a header code and cannot be used on claims. Choose the most specific code:
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
N18 – Chronic kidney disease (CKD)
Code first:
Use additional code:
Block N17-N19
Excludes2 (not included here):
- congenital renal failure (P96.0)
- drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-)
- extrarenal uremia (R39.2)
- hemolytic-uremic syndrome (D59.3-)
- hepatorenal syndrome (K76.7)
- postpartum hepatorenal syndrome (O90.41)
- posttraumatic renal failure (T79.5)
- prerenal uremia (R39.2)
- renal failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4)
- renal failure following labor and delivery (O90.41)
- renal failure postprocedural (N99.0)
Related codes in N18
Frequently asked questions
What is ICD-10 code N18.3?
N18.3 is the ICD-10-CM code for chronic kidney disease, stage 3 (moderate), in the block N17-N19 (Acute kidney failure and chronic kidney disease).
Is N18.3 a billable code?
No. N18.3 is a header code with more specific child codes; report one of the billable codes listed above.
What category does N18.3 belong to?
It belongs to category N18 – Chronic kidney disease (CKD).
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.