D36.12 vs D49.2

D36.12 (Benign neoplasm of peripheral nerves and autonomic nervous system, upper limb, including shoulder) compared with D49.2 (Neoplasm of unspecified behavior of bone, soft tissue, and skin), from the official CMS tabular data. D36.12 and D49.2 name the same anatomical site (brachial plexus) with a different neoplasm behavior.

Relationship

Informational

Neoplasm table relationship

D36.12

Benign neoplasm of peripheral nerves and autonomic nervous system, upper limb, including shoulder

↔

D49.2

Neoplasm of unspecified behavior of bone, soft tissue, and skin

Same anatomical site, different neoplasm behavior.

Same site — unspecified behavior (brachial plexus)

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. D36.12 and D49.2 name the same anatomical site (brachial plexus) with a different neoplasm behavior.

From the CMS 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

	D36.12Benign neoplasm of peripheral nerves and autonomic nervous system, upper limb, including shoulder	D49.2Neoplasm of unspecified behavior of bone, soft tissue, and skin
Billing status	Billable	Billable
Classification	C00-D49 — Neoplasms (C00-D49)	C00-D49 — Neoplasms (C00-D49)
Definition	Benign neoplasm of peripheral nerves and autonomic nervous system, upper limb, including shoulder is a billable ICD-10-CM diagnosis code (D36.12).	Neoplasm of unspecified behavior of bone, soft tissue, and skin is a billable ICD-10-CM diagnosis code (D49.2).
Includes	—	'growth' NOS neoplasm NOS new growth NOS tumor NOS

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