T20.40D✓ Billable
Corrosion of unspecified degree of head, face, and neck, unspecified site, subsequent encounter
Corrosion of unspecified degree of head, face, and neck, uns…
Code Hierarchy
┌19Injury, poisoning and certain other consequences of external causes (S00-T88)├T20-T25Burns and corrosions of external body surface, specified by site (T20-T25)├T20Burn and corrosion of head, face, and neck
└T20.40DCorrosion of unspecified degree of head, face, and neck, uns…
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