S99.109K – Unspecified physeal fracture of unspecified metatarsal, subsequent encounter for fracture with nonunion
ICD-10-CM 2027 diagnosis code · Injuries to the ankle and foot
- Code
S99.109K(claims format:S99109K)- Description
- Unspecified physeal fracture of unspecified metatarsal, subsequent encounter for fracture with nonunion
- Short description
- Unspecified physeal fracture of unspecified metatarsal, 7thK
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes (S00-T88)
- Block
- S90-S99 Injuries to the ankle and foot
- Parent codes
- S99 › S99.1 › S99.10 › S99.109
7th character values
Codes in this category need a 7th character to describe the encounter or episode of care.
| Character | Meaning |
|---|---|
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 |
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
S99.1 – Physeal fracture of metatarsal
- The appropriate 7th character is to be added to each code from subcategories S99.1
Block S90-S99
Related codes in S99.109
- S99.109A – Unspecified physeal fracture of unspecified metatarsal, initial encounter for closed fractureBillable
- S99.109B – Unspecified physeal fracture of unspecified metatarsal, initial encounter for open fractureBillable
- S99.109D – Unspecified physeal fracture of unspecified metatarsal, subsequent encounter for fracture with routine healingBillable
- S99.109G – Unspecified physeal fracture of unspecified metatarsal, subsequent encounter for fracture with delayed healingBillable
- S99.109P – Unspecified physeal fracture of unspecified metatarsal, subsequent encounter for fracture with malunionBillable
- S99.109S – Unspecified physeal fracture of unspecified metatarsal, sequelaBillable
Frequently asked questions
What is ICD-10 code S99.109K?
S99.109K is the ICD-10-CM code for unspecified physeal fracture of unspecified metatarsal, subsequent encounter for fracture with nonunion, in the block S90-S99 (Injuries to the ankle and foot).
Is S99.109K a billable code?
Yes. S99.109K is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does S99.109K belong to?
It belongs to category S99 – Other and unspecified injuries of ankle and foot.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.