T20.4Non-billable (header)
Corrosion of unspecified degree of head, face, and neck
Sub-codes of T20.4(9)
T20.4 is a non-billable header. Select a sub-code to bill. Sub-codes marked ⚠ require a 7th character — append A, D, or S (and an X placeholder if needed).
T20.40Corrosion of unspecified degree of head, face, and neck, uns…⚠ 7th charT20.41Corrosion of unspecified degree of ear [any part, except ear…HeaderT20.42Corrosion of unspecified degree of lip(s)⚠ 7th charT20.43Corrosion of unspecified degree of chin⚠ 7th charT20.44Corrosion of unspecified degree of nose (septum)⚠ 7th charT20.45Corrosion of unspecified degree of scalp [any part]⚠ 7th charT20.46Corrosion of unspecified degree of forehead and cheek⚠ 7th charT20.47Corrosion of unspecified degree of neck⚠ 7th charT20.49Corrosion of unspecified degree of multiple sites of head, f…⚠ 7th char
Notes
- ℹexternal cause code to identify place (Y92)
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
└T20.4Corrosion of unspecified degree of head, face, and neck
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