S89.101K — Unspecified physeal fracture of lower end of right tibia, subsequent encounter for fracture with nonunion
S89.101K is a billable, specific ICD-10-CM code for unspecified physeal fracture of lower end of right tibia, subsequent encounter for fracture with nonunion. It is valid for submission on a claim.
7th character "K" — subsequent encounter for fracture with nonunion
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
Risk adjustment
S89.101K 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
S89.101K is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52465Knee Orthoses - Policy Article
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- A53065Billing and Coding: Outpatient Physical Therapy
Related codes at this level
Codes that share S89.101. If S89.101K is not quite right, the correct code is usually one of these.
- S89.101AUnspecified physeal fracture of lower end of right tibia, initial encounter for closed fracture
- S89.101DUnspecified physeal fracture of lower end of right tibia, subsequent encounter for fracture with routine healing
- S89.101GUnspecified physeal fracture of lower end of right tibia, subsequent encounter for fracture with delayed healing
- S89.101PUnspecified physeal fracture of lower end of right tibia, subsequent encounter for fracture with malunion
- S89.101SUnspecified physeal fracture of lower end of right tibia, sequela
Questions about S89.101K
- Is S89.101K a billable ICD-10-CM code?
- Yes. S89.101K is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does S89.101K 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).