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C44.211 vs C44.212

C44.211 (Basal cell carcinoma of skin of unspecified ear and external auricular canal) compared with C44.212 (Basal cell carcinoma of skin of right ear and external auricular canal), from the official CMS tabular data. C44.211 and C44.212 code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

C44.211
Unspecified
Basal cell carcinoma of skin of unspecified ear and external auricular canal
C44.212
Right
Basal cell carcinoma of skin of right ear and external auricular canal

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. C44.211 and C44.212 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

C44.211Basal cell carcinoma of skin of unspecified ear and external auricular canalC44.212Basal cell carcinoma of skin of right ear and external auricular canal
Billing statusBillableBillable
ClassificationC00-D49 — NeoplasmsC00-D49 — Neoplasms
DefinitionBasal cell carcinoma of skin of unspecified ear and external auricular canal is a billable ICD-10-CM diagnosis code (C44.211).Basal cell carcinoma of skin of right ear and external auricular canal is a billable ICD-10-CM diagnosis code (C44.212).
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