Skip to content
HCC Buddy home

T20.4

Non-Billable (Header)

Corrosion of unspecified degree of head, face, and neck

Use Additional Code

  • external cause code to identify place (Y92)

Code First

  • (T51-T65) to identify chemical and intent

Child Codes

T20.40Corrosion of unspecified degree of head, face, and neck, unspecified site
T20.41Corrosion of unspecified degree of ear [any part, except ear drum]
T20.42Corrosion of unspecified degree of lip(s)
T20.43Corrosion of unspecified degree of chin
T20.44Corrosion of unspecified degree of nose (septum)
T20.45Corrosion of unspecified degree of scalp [any part]
T20.46Corrosion of unspecified degree of forehead and cheek
T20.47Corrosion of unspecified degree of neck
T20.49Corrosion of unspecified degree of multiple sites of head, face, and neck

Code Hierarchy

└T20Burn and corrosion of head, face, and neck└T20.4Corrosion of unspecified degree of head, face, and neck
└T20.4Corrosion of unspecified degree of head, face, and neck

Open T20.4 in the Interactive Encoder

See full code details, AI coding tips, HCC mappings, and related codes in our interactive encoder. Start your 14-day Pro trial — no credit card required.

Open in EncoderStart 14-Day Pro Trial