173.20
Unspecified malignant neoplasm of skin of ear and external auditory canal
The ICD-9 code for unspecified malignant neoplasm of skin of ear and external auditory canal is 173.20.
Legacy code — retired October 1, 2015ICD-10-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents.
View ICD-9 → ICD-10 crosswalk for 173.20 →