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D16.9 vs D48.0

D16.9 (Benign neoplasm of bone and articular cartilage, unspecified) compared with D48.0 (Neoplasm of uncertain behavior of bone and articular cartilage), from the official CMS tabular data. D16.9 and D48.0 name the same anatomical site (bone) with a different neoplasm behavior. MedCoder-derived

Relationship

Informational

Neoplasm table relationship

D16.9
Benign neoplasm of bone and articular cartilage, unspecified
D48.0
Neoplasm of uncertain behavior of bone and articular cartilage

Same anatomical site, different neoplasm behavior.

Same site — uncertain behavior (bone)

The behavior documented for the site — malignant primary, secondary, carcinoma in situ, benign, uncertain or unspecified — decides which column of the neoplasm table, and therefore which code, applies.

Source: CMS Table of Neoplasms

Can these codes be reported together?

Same site, different neoplasm behavior. D16.9 and D48.0 name the same anatomical site (bone) with a different neoplasm behavior.

From the CMS/CDC Table of Neoplasms: the behavior documented for that site — malignant primary, secondary, carcinoma in situ, benign, uncertain or unspecified — decides which column, and therefore which code, applies.

Side by side

D16.9Benign neoplasm of bone and articular cartilage, unspecifiedD48.0Neoplasm of uncertain behavior of bone and articular cartilage
Billing statusBillableBillable
ClassificationC00-D49 — NeoplasmsC00-D49 — Neoplasms
DefinitionBenign neoplasm of bone and articular cartilage, unspecified is a billable ICD-10-CM diagnosis code (D16.9).Neoplasm of uncertain behavior of bone and articular cartilage is a billable ICD-10-CM diagnosis code (D48.0).

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources