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C44.691 vs C44.699

C44.691 (Other specified malignant neoplasm of skin of unspecified upper limb, including shoulder) compared with C44.699 (Other specified malignant neoplasm of skin of left upper limb, including shoulder), from the official CMS tabular data. C44.691 and C44.699 code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

C44.691
Unspecified
Other specified malignant neoplasm of skin of unspecified upper limb, including shoulder
C44.699
Left
Other specified malignant neoplasm of skin 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. C44.691 and C44.699 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

C44.691Other specified malignant neoplasm of skin of unspecified upper limb, including shoulderC44.699Other specified malignant neoplasm of skin of left upper limb, including shoulder
Billing statusBillableBillable
ClassificationC00-D49 — NeoplasmsC00-D49 — Neoplasms
DefinitionOther specified malignant neoplasm of skin of unspecified upper limb, including shoulder is a billable ICD-10-CM diagnosis code (C44.691).Other specified malignant neoplasm of skin of left upper limb, including shoulder is a billable ICD-10-CM diagnosis code (C44.699).
Includes
malignant neoplasm of sebaceous glands
malignant neoplasm of sweat glands
malignant neoplasm of sebaceous glands
malignant neoplasm of sweat glands

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