C90 — Multiple myeloma and malignant plasma cell neoplasms
Is C90 billable?
No — C90 is a non-billable header code. C90 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 12 billable codes beneath C90.
Billable codes under this header
- C90.00Multiple myeloma not having achieved remission
- C90.01Multiple myeloma in remission
- C90.02Multiple myeloma in relapse
- C90.10Plasma cell leukemia not having achieved remission
- C90.11Plasma cell leukemia in remission
- C90.12Plasma cell leukemia in relapse
- C90.20Extramedullary plasmacytoma not having achieved remission
- C90.21Extramedullary plasmacytoma in remission
- C90.22Extramedullary plasmacytoma in relapse
- C90.30Solitary plasmacytoma not having achieved remission
- C90.31Solitary plasmacytoma in remission
- C90.32Solitary plasmacytoma in relapse
C90 at a glance
| Code | C90 |
|---|---|
| Description | Multiple myeloma and malignant plasma cell neoplasms |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with C90 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 other malignant neoplasms of lymphoid, hematopoietic and related tissues (Z85.79)
Excludes2 — not included here — inherited from C81-C96
The conditions below are not part of C90, but a patient may have both at the same time. When documentation supports it, C90 and the excluded code may both be reported.
What codes fall under C90? (4)
How long has C90 existed?
C90 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.
Which codes are confused with C90?
ICD-10-CM declares these codes mutually exclusive with C90 — exactly one of each pair can be correct for a given encounter.