MCMCB Pro
S02.413B

S02.413BLeFort III fracture, initial encounter for open fracture

Billable / specific codeICD-10-CM

S02.413B is a billable, specific ICD-10-CM code for lefort iii fracture, initial encounter for open fracture. It is valid for submission on a claim.

7th character "B" — initial encounter for open fracture

The appropriate 7th character is to be added to each code from category S02

A
initial encounter for closed fracture
B
initial encounter for open fracture
D
subsequent encounter for fracture with routine healing
G
subsequent encounter for fracture with delayed healing
K
subsequent encounter for fracture with nonunion
S
sequela

Risk adjustment

S02.413B risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 399 Major Head Injury without Loss of Consciousness0.199 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

S02.413B is named in 5 Medicare coverage policies 5 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
  • A56900Billing and Coding: Immunizations
  • A57204Billing and Coding: MRI and CT Scans of the Head and Neck
  • A58872Billing and Coding: Tetanus Immunization

Related codes at this level

Codes that share S02.413. If S02.413B is not quite right, the correct code is usually one of these.

Questions about S02.413B

Is S02.413B a billable ICD-10-CM code?
Yes. S02.413B is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does S02.413B sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the head (S00-S09).
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.