C95.00 — Acute leukemia of unspecified cell type not having achieved remission
Is C95.00 billable?
Yes, but C95.00 is an unspecified code. C95.00 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, C95.00 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 C95.00 — the more specific alternatives are listed below.
C95.00 at a glance
| Code | C95.00 |
|---|---|
| Description | Acute leukemia of unspecified cell type not having achieved remission |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does C95.00 group to?
C95.00 sits in MDC 17 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.
- 820Lymphoma and Leukemia with Major O.R. Procedures with MCCsurgical
- 821Lymphoma and Leukemia with Major O.R. Procedures with CCsurgical
- 822Lymphoma and Leukemia with Major O.R. Procedures without CC/MCCsurgical
As a secondary diagnosis, C95.00 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is C95.00 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under C95.0, the nearest indexed parent of C95.00. Use them to find the family, then select the specific code.
- Leukemia, leukemic › acute bilineal
- Leukemia, leukemic › acute mixed lineage
- Leukemia, leukemic › biphenotypic acute
- Leukemia, leukemic › blast cell
- Leukemia, leukemic › stem cell, of unclear lineage
- Leukemia, leukemic › unspecified cell type › acute
Inclusion terms
Alternative wording in documentation that is classified to C95.00.
- Acute leukemia of unspecified cell type with failed remission
- Acute leukemia NOS
Excludes1 — never code together — inherited from C95
The conditions below can never be reported together with C95.00 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- personal history of leukemia (Z85.6)
Excludes1 — never code together — inherited from C95.0
The conditions below can never be reported together with C95.00 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- acute exacerbation of unspecified chronic leukemia (C95.10)
Excludes2 — not included here — inherited from C81-C96
The conditions below are not part of C95.00, but a patient may have both at the same time. When documentation supports it, C95.00 and the excluded code may both be reported.
How long has C95.00 existed?
C95.00 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.