N18.30 — Chronic kidney disease, stage 3 unspecified
Is N18.30 billable?
Yes, but N18.30 is an unspecified code. N18.30 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, N18.30 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting N18.30 — the more specific alternatives are listed below.
More specific alternatives
N18.30 at a glance
| Code | N18.30 |
|---|---|
| Description | Chronic kidney disease, stage 3 unspecified |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does N18.30 group to?
N18.30 sits in MDC Pre and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 008Simultaneous Pancreas, Islet Cell and Kidney Transplantsurgical
How is N18.30 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to N18.30. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Disease, diseased › kidney › chronic › stage 3
Code first — inherited from N18
The underlying condition below must be sequenced before N18.30. N18.30 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from N18
Report an additional code alongside N18.30 to fully describe the condition. N18.30 is sequenced first.
Excludes2 — not included here — inherited from Chapter 14
The conditions below are not part of N18.30, but a patient may have both at the same time. When documentation supports it, N18.30 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 N18.30, but a patient may have both at the same time. When documentation supports it, N18.30 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)
How long has N18.30 existed?
N18.30 first appears in FY2021 (FY2020 is not available, so it may have appeared then).
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.