D48.9 – Neoplasm of uncertain behavior, unspecified

ICD-10-CM 2027 diagnosis code · Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes

Billable code

ICD-10-CM code D48.9

Code: D48.9 (claims format: D489)
Description: Neoplasm of uncertain behavior, unspecified
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: D37-D48 Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes
Parent codes: D48

Notes inherited from parent codes

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

D48 – Neoplasm of uncertain behavior of other and unspecified sites

Excludes1 (not coded here):

neurofibromatosis (nonmalignant) (Q85.0-)

Block D37-D48

Excludes1 (not coded here):

neoplasms of unspecified behavior (D49.-)

Notes:

Categories D37-D44, and D48 classify by site neoplasms of uncertain behavior, i.e., histologic confirmation whether the neoplasm is malignant or benign cannot be made.

Related codes in D48

Frequently asked questions

What is ICD-10 code D48.9?

D48.9 is the ICD-10-CM code for neoplasm of uncertain behavior, unspecified, in the block D37-D48 (Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes).

Is D48.9 a billable code?

Yes. D48.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does D48.9 belong to?

It belongs to category D48 – Neoplasm of uncertain behavior 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.