Is S99.231P a billable ICD-10-CM code?

Yes. S99.231P is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does S99.231P 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).

S99.231P

S99.231P — Salter-Harris Type III physeal fracture of phalanx of right toe, subsequent encounter for fracture with malunion

Billable / specific codeICD-10-CMPOA exemptright

S99.231P is a billable, specific ICD-10-CM code for salter-harris type iii physeal fracture of phalanx of right toe, subsequent encounter for fracture with malunion. It is valid for submission on a claim.

7th character "P" — subsequent encounter for fracture with malunion

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

S99.231P 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 S99.231. If S99.231P is not quite right, the correct code is usually one of these.

Questions about S99.231P

Is S99.231P a billable ICD-10-CM code?: Yes. S99.231P is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does S99.231P 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).