Is S99.299B a billable ICD-10-CM code?

Yes. S99.299B is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does S99.299B sit in the tabular list?

Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the ankle and foot (S90-S99).

S99.299B

S99.299B — Other physeal fracture of phalanx of unspecified toe, initial encounter for open fracture

Billable / specific codeICD-10-CM

S99.299B is a billable, specific ICD-10-CM code for other physeal fracture of phalanx of unspecified toe, 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 subcategories S99.2

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
P: subsequent encounter for fracture with malunion
S: sequela

Risk adjustment

S99.299B 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.

Related codes at this level

Codes that share S99.299. If S99.299B is not quite right, the correct code is usually one of these.

Questions about S99.299B

Is S99.299B a billable ICD-10-CM code?: Yes. S99.299B is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does S99.299B sit in the tabular list?: Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the ankle and foot (S90-S99).