N18.3 — Chronic kidney disease, stage 3 (moderate)
Is N18.3 billable?
No — N18.3 is a non-billable header code. N18.3 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath N18.3.
Billable codes under this header
N18.3 at a glance
| Code | N18.3 |
|---|---|
| Description | Chronic kidney disease, stage 3 (moderate) |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Code first — inherited from N18
The underlying condition below must be sequenced before N18.3. N18.3 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from N18
Report an additional code alongside N18.3 to fully describe the condition. N18.3 is sequenced first.
Excludes2 — not included here — inherited from Chapter 14
The conditions below are not part of N18.3, but a patient may have both at the same time. When documentation supports it, N18.3 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Excludes2 — not included here — inherited from N17-N19
The conditions below are not part of N18.3, but a patient may have both at the same time. When documentation supports it, N18.3 and the excluded code may both be reported.
- 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)
What codes fall under N18.3? (3)
How long has N18.3 existed?
N18.3 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
- FY2021: N18.3 stopped being billable
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.