T20.79⚠ Requires 7th Character

Corrosion of third degree of multiple sites of head, face, and neck

Corrosion of third degree of multiple sites of head, face, a…

⚠ 7th Character Required

The appropriate 7th character is to be added to each code from category T20

This code is not valid for billing without a 7th character. Append one of the following to T20.79:

Ainitial encounterT20.79XADsubsequent encounterT20.79XDSsequelaT20.79XS

Sub-codes of T20.79(3)

T20.79 is a non-billable header. Select a sub-code to bill.

T20.79ACorrosion of third degree of multiple sites of head, face, a…✓ BillableT20.79DCorrosion of third degree of multiple sites of head, face, a…✓ BillableT20.79SCorrosion of third degree of multiple sites of head, face, a…✓ Billable

Also Indexed As(ICD-10-CM Alphabetic Index)

These clinical terms, synonyms, and manifestations all map to T20.79 in the official ICD-10-CM Alphabetic Index.

Corrosion (injury) (acid) (caustic) (chemical) (lime) (external) (internal), head (and face) (and neck), multiple sites, third degree

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
└T20.79Corrosion of third degree of multiple sites of head, face, a…

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