Skip to main content

C49.11 vs C49.12

C49.11 (Malignant neoplasm of connective and soft tissue of right upper limb, including shoulder) compared with C49.12 (Malignant neoplasm of connective and soft tissue of left upper limb, including shoulder), from the official CMS tabular data. C49.11 and C49.12 code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

C49.11
Right
Malignant neoplasm of connective and soft tissue of right upper limb, including shoulder
C49.12
Left
Malignant neoplasm of connective and soft tissue of left upper limb, including shoulder

Same condition; these differ only in which side is documented.

These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.

Source: ICD-10-CM tabular list (laterality variant derived from the code title)

Can these codes be reported together?

Same condition, opposite side. C49.11 and C49.12 name the same condition on opposite sides of the body.

Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.

Side by side

C49.11Malignant neoplasm of connective and soft tissue of right upper limb, including shoulderC49.12Malignant neoplasm of connective and soft tissue of left upper limb, including shoulder
Billing statusBillableBillable
ClassificationC00-D49 — NeoplasmsC00-D49 — Neoplasms
DefinitionMalignant neoplasm of connective and soft tissue of right upper limb, including shoulder is a billable ICD-10-CM diagnosis code (C49.11).Malignant neoplasm of connective and soft tissue of left upper limb, including shoulder is a billable ICD-10-CM diagnosis code (C49.12).
Includes
malignant neoplasm of blood vessel
malignant neoplasm of bursa
malignant neoplasm of cartilage
malignant neoplasm of fascia
malignant neoplasm of blood vessel
malignant neoplasm of bursa
malignant neoplasm of cartilage
malignant neoplasm of fascia

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