ICD10 CM Tabular
T20.40 Corrosion of unspecified degree of head, face, and neck, unspecified site
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T20.40XA Corros unsp degree of head, face, and neck, unsp site, init
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T20.40XD Corros unsp degree of head, face, and neck, unsp site, subs
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T20.40XS Corros unsp degree of head, face, and neck, unsp site, sqla