T20.42XABillable
Corrosion of unspecified degree of lip(s), initial encounter
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- T20
- Effective date
- October 1, 2026
Related codes in category T20
T20Burn and corrosion of head, face, and neckT20.0Burn of unspecified degree of head, face, and neckT20.00Burn of unsp degree of head, face, and neck, unsp siteT20.00XABurn of unsp degree of head, face, and neck, unsp site, initYesT20.00XDBurn of unsp degree of head, face, and neck, unsp site, subsYesT20.00XSBurn unsp degree of head, face, and neck, unsp site, sequelaYesT20.01Burn of unspecified degree of earT20.011Burn of unspecified degree of right earT20.011ABurn of unspecified degree of right ear, initial encounterYesT20.011DBurn of unspecified degree of right ear, subs encntrYesT20.011SBurn of unspecified degree of right ear, sequelaYesT20.012Burn of unspecified degree of left ear
Frequently asked questions
What is ICD-10 code T20.42XA?
T20.42XA is an ICD-10-CM diagnosis code for Corrosion of unspecified degree of lip(s), initial encounter.
Is T20.42XA a billable code?
Yes. T20.42XA is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is T20.42XA in?
T20.42XA falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did T20.42XA become effective?
T20.42XA has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to T20.42XA?
T20.42XA belongs to category T20, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.