D49.8 – Neoplasm of unspecified behavior of other specified sites
ICD-10-CM 2027 diagnosis code · Neoplasms of unspecified behavior (D49)
ICD-10-CM code
D49.8
- Code
D49.8(claims format:D498)- Description
- Neoplasm of unspecified behavior of other specified sites
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 2. Neoplasms (C00-D49)
- Block
- D49 Neoplasms of unspecified behavior (D49)
- Parent codes
- D49
Billable codes under D49.8
D49.8 is a header code and cannot be used on claims. Choose the most specific code:
Notes for D49.8
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
D49 – Neoplasms of unspecified behavior
Includes:
- 'growth' NOS
- neoplasm NOS
- new growth NOS
- tumor NOS
Notes:
- Category D49 classifies by site neoplasms of unspecified morphology and behavior. The term 'mass', unless otherwise stated, is not to be regarded as a neoplastic growth.
Related codes in D49
- D49.0 – Neoplasm of unspecified behavior of digestive systemBillable
- D49.1 – Neoplasm of unspecified behavior of respiratory systemBillable
- D49.2 – Neoplasm of unspecified behavior of bone, soft tissue, and skinBillable
- D49.3 – Neoplasm of unspecified behavior of breastBillable
- D49.4 – Neoplasm of unspecified behavior of bladderBillable
- D49.5 – Neoplasm of unspecified behavior of other genitourinary organsHeader
- D49.6 – Neoplasm of unspecified behavior of brainBillable
- D49.7 – Neoplasm of unspecified behavior of endocrine glands and other parts of nervous systemBillable
- D49.9 – Neoplasm of unspecified behavior of unspecified siteBillable
Frequently asked questions
What is ICD-10 code D49.8?
D49.8 is the ICD-10-CM code for neoplasm of unspecified behavior of other specified sites, in the block D49 (Neoplasms of unspecified behavior (D49)).
Is D49.8 a billable code?
No. D49.8 is a header code with more specific child codes; report one of the billable codes listed above.
What category does D49.8 belong to?
It belongs to category D49 – Neoplasms of unspecified behavior.
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.