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S89.399Non-billableSave

S89.399 - Other physeal fracture of lower end of unspecified fibula

ICD-10-CM Chapter 19: Injury, poisoning and certain other consequences of external causes · S80-S89 Injuries to the knee and lower leg (S80-S89) · Subcategory of S89.39 · FY2027

Coding Guidance

S89.399 requires a 7th character. Report the code below that matches the documentation, for example A for initial encounter for closed fracture, D for subsequent encounter for fracture with routine healing, G for subsequent encounter for fracture with delayed healing.

7th Character

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

Includes, Excludes and Coding Notes

Excludes 2 — Not Included HereFrom S89

Not part of this code; report both codes when the patient has both conditions.

  • other and unspecified injuries of ankle and foot (S99.-)
NotesFrom S89

Instructional notes from the ICD-10-CM tabular list.

  • A fracture not indicated as open or closed should be coded to closed
Excludes 2 — Not Included HereFrom S80-S89 Injuries to the knee and lower leg (S80-S89)

Not part of this code; report both codes when the patient has both conditions.

  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)
  • insect bite or sting, venomous (T63.4)
Excludes 2 — Not Included HereFrom Chapter S00-T88

Not part of this code; report both codes when the patient has both conditions.

  • birth trauma (P10-P15)
  • obstetric trauma (O70-O71)
Use Additional CodeFrom Chapter S00-T88

Add a secondary code to identify the associated condition or cause when it is documented.

  • code to identify any retained foreign body, if applicable (Z18.-)
NotesFrom Chapter S00-T88

Instructional notes from the ICD-10-CM tabular list.

  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

More Specific Codes (6)

S89.399AOther physeal fracture of lower end of unspecified fibula, initial encounter for closed fracture→S89.399DOther physeal fracture of lower end of unspecified fibula, subsequent encounter for fracture with routine healing→S89.399GOther physeal fracture of lower end of unspecified fibula, subsequent encounter for fracture with delayed healing→S89.399KOther physeal fracture of lower end of unspecified fibula, subsequent encounter for fracture with nonunion→S89.399POther physeal fracture of lower end of unspecified fibula, subsequent encounter for fracture with malunion→S89.399SOther physeal fracture of lower end of unspecified fibula, sequela→