Is S89.1 a billable ICD-10-CM code?

No. S89.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does S89.1 sit in the tabular list?

Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the knee and lower leg (S80-S89).

S89.1

S89.1 — Physeal fracture of lower end of tibia

Non-billable headerICD-10-CM

S89.1 is a non-billable header ICD-10-CM code for physeal fracture of lower end of tibia. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from subcategories S89.0, S89.1, S89.2, and S89.3

A: initial encounter for closed 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

Other codes that can never be billed with S89.1

These codes carry an Excludes1 note pointing at S89.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading S89.1 alone.

S82.5Fracture of medial malleolus

Risk adjustment

S89.1 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.

Code to one of these instead S89.1

6 child codes. Green means billable.

Related codes at this level

Codes that share S89. If S89.1 is not quite right, the correct code is usually one of these.

Questions about S89.1

Is S89.1 a billable ICD-10-CM code?: No. S89.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does S89.1 sit in the tabular list?: Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the knee and lower leg (S80-S89).