C79.52 – Secondary malignant neoplasm of bone marrow

ICD-10-CM 2027 diagnosis code · Malignant neoplasms of ill-defined, other secondary and unspecified sites

Billable code

ICD-10-CM code C79.52

Code: C79.52 (claims format: C7952)
Description: Secondary malignant neoplasm of bone marrow
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 2. Neoplasms (C00-D49)
Block: C76-C80 Malignant neoplasms of ill-defined, other secondary and unspecified sites
Parent codes: C79 › C79.5

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

C79 – Secondary malignant neoplasm of other and unspecified sites

Excludes1 (not coded here):

secondary carcinoid tumors (C7B.-)
secondary neuroendocrine tumors (C7B.-)

C79.5 – Secondary malignant neoplasm of bone and bone marrow

Excludes1 (not coded here):

secondary carcinoid tumors of bone (C7B.03)

Related codes in C79.5

C79.51 – Secondary malignant neoplasm of boneBillable

Frequently asked questions

What is ICD-10 code C79.52?

C79.52 is the ICD-10-CM code for secondary malignant neoplasm of bone marrow, in the block C76-C80 (Malignant neoplasms of ill-defined, other secondary and unspecified sites).

Is C79.52 a billable code?

Yes. C79.52 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does C79.52 belong to?

It belongs to category C79 – Secondary malignant neoplasm of other and unspecified sites.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.