MCMCB Pro
T57.2X4D

T57.2X4DToxic effect of manganese and its compounds, undetermined, subsequent encounter

Billable / specific codeICD-10-CMPOA exempt

T57.2X4D is a billable, specific ICD-10-CM code for toxic effect of manganese and its compounds, undetermined, subsequent encounter. It is valid for submission on a claim.

7th character "D" — subsequent encounter

The appropriate 7th character is to be added to each code from category T57

A
initial encounter
D
subsequent encounter
S
sequela

Risk adjustment

T57.2X4D does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

T57.2X4D is named in 2 Medicare coverage policies 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A56612Billing and Coding: CT of the Head
  • A56767Billing and Coding: Heavy Metal Testing

Related codes at this level

Codes that share T57.2X4. If T57.2X4D is not quite right, the correct code is usually one of these.

Questions about T57.2X4D

Is T57.2X4D a billable ICD-10-CM code?
Yes. T57.2X4D is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T57.2X4D sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Toxic effects of substances chiefly nonmedicinal as to source (T51-T65).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.