I12.9 — Hypertensive chronic kidney disease with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease
Is I12.9 billable?
Yes, but I12.9 is an unspecified code. I12.9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, I12.9 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 I12.9 — the more specific alternatives are listed below.
More specific alternatives
I12.9 at a glance
| Code | I12.9 |
|---|---|
| Description | Hypertensive chronic kidney disease with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does I12.9 group to?
I12.9 sits in MDC 11 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 682Renal Failure with MCCmedical
- 683Renal Failure with CCmedical
- 684Renal Failure without CC/MCCmedical
How is I12.9 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to I12.9. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Hypertension, hypertensive › kidney (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
- Hypertension, hypertensive › kidney › with › stage 1 through stage 4 chronic kidney disease (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
Use additional code
Report an additional code alongside I12.9 to fully describe the condition. I12.9 is sequenced first.
Inclusion terms
Alternative wording in documentation that is classified to I12.9.
- Hypertensive chronic kidney disease NOS
- Hypertensive renal disease NOS
Excludes1 — never code together — inherited from I10-I1A
The conditions below can never be reported together with I12.9 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from I12
The conditions below can never be reported together with I12.9 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from I10-I1A
Report an additional code alongside I12.9 to fully describe the condition. I12.9 is sequenced first.
Excludes2 — not included here — inherited from Chapter 9
The conditions below are not part of I12.9, but a patient may have both at the same time. When documentation supports it, I12.9 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)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Excludes2 — not included here — inherited from I10-I1A
The conditions below are not part of I12.9, but a patient may have both at the same time. When documentation supports it, I12.9 and the excluded code may both be reported.
Excludes2 — not included here — inherited from I12
The conditions below are not part of I12.9, but a patient may have both at the same time. When documentation supports it, I12.9 and the excluded code may both be reported.
- acute kidney failure (N17.-)
How long has I12.9 existed?
I12.9 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.