MCMCB Pro
S30.857A

S30.857ASuperficial foreign body of anus, initial encounter

Billable / specific codeICD-10-CM

S30.857A is a billable, specific ICD-10-CM code for superficial foreign body of anus, initial encounter. It is valid for submission on a claim.

7th character "A" — initial encounter

The appropriate 7th character is to be added to each code from category S30

A
initial encounter
D
subsequent encounter
S
sequela

Risk adjustment

S30.857A 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

S30.857A is named in 6 Medicare coverage policies 6 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52438Billing and Coding: Tetanus Immunization
  • A54767Billing and Coding: Medicare Preventive Coverage for Certain Vaccines
  • A56459Billing and Coding: Debridement Services
  • A56900Billing and Coding: Immunizations

Related codes at this level

Codes that share S30.857. If S30.857A is not quite right, the correct code is usually one of these.

Questions about S30.857A

Is S30.857A a billable ICD-10-CM code?
Yes. S30.857A is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does S30.857A sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals (S30-S39).
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.