T20.512A

T20.512A: Corrosion of first degree of left ear [any part, except ear drum], initial encounter

Billable / specific codeICD-10-CMleft

T20.512A is a billable, specific ICD-10-CM code for corrosion of first degree of left ear [any part, except ear drum], initial encounter. It is valid for submission on a claim.

Check T20.512A with the rest of the claim: free scrubber

7th character "A": initial encounter

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

A: initial encounter
D: subsequent encounter
S: sequela

Excludes2 inherited from the categories above T20.512A

Not part of this code, but both may be coded when both are present.

Written on T20.51: Corrosion of first degree of ear [any part, except ear drum]

corrosion of ear drum (T28.91-)

Written on T20: Burn and corrosion of head, face, and neck

burn and corrosion of ear drum (T28.41, T28.91)
burn and corrosion of eye and adnexa (T26.-)
burn and corrosion of mouth and pharynx (T28.0)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

T20.512A is named in 3 Medicare coverage policies: 3 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A56900Billing and Coding: Immunizations
A57204Billing and Coding: MRI and CT Scans of the Head and Neck
A59186Billing and Coding: Magnesium

Code history

Unchanged in every release from FY2024 to FY2027.