D49.9

D49.9: Neoplasm of unspecified behavior of unspecified site

Billable / specific codeICD-10-CM

D49.9 is a billable, specific ICD-10-CM code for neoplasm of unspecified behavior of unspecified site. It is valid for submission on a claim.

Check D49.9 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above D49.9

Not part of this code, but both may be coded when both are present.

Written on D49: Neoplasms of unspecified behavior

neoplasms of uncertain behavior (D37-D44, D48)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

D49.9 is named in 9 Medicare coverage policies: 9 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A52450Billing and Coding: Paclitaxel (e.g., Taxol®/Abraxane ™)
A52986Billing and Coding: Biomarkers for Oncology
A53101Billing and Coding: MolDX: bioTheranostics Cancer TYPE ID® Update
A54188Billing and Coding: MolDX: bioTheranostics Cancer TYPE ID®

Alphabetic index entries that lead here

Dermatomyositis›in neoplastic disease(due to)
Dermatopolymyositis›in neoplastic disease
Neuromyopathy›paraneoplastic(see also, Neoplasm, by site, if known)
Neuropathy, neuropathic›paraneoplastic(sensorial) (Denny Brown) (see also, Neoplasm, by site, if known)
Arthropathy›in›neoplastic disease NOS(see also Neoplasm)
Encephalopathy›in›neoplastic disease(see also Neoplasm)
Myelopathy›in›neoplastic disease
Polyneuropathy›in›neoplastic disease
Ataxia, ataxy, ataxic›cerebellar›in›neoplastic disease
Atrophy, atrophic›systemic affecting central nervous system›in›neoplastic disease
Compression›nerve›root or plexus NOS›neoplastic disease
Myasthenia›syndrome›in›neoplastic disease

Code history

Unchanged in every release from FY2024 to FY2027.