S89.399D — Other physeal fracture of lower end of unspecified fibula, subsequent encounter for fracture with routine healing
Is S89.399D billable?
Yes, but S89.399D is an unspecified code. S89.399D is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S89.399D is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting S89.399D — the more specific alternatives are listed below.
S89.399D at a glance
| Code | S89.399D |
|---|---|
| Description | Other physeal fracture of lower end of unspecified fibula, subsequent encounter for fracture with routine healing |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "D" | subsequent encounter for fracture with routine healing |
What does the 7th character "D" mean in S89.399D?
In S89.399D, the 7th character D means subsequent encounter for fracture with routine healing. The 7th character is required for S89.399D to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
- Ainitial encounter for closed fractureS89.399A
- Dsubsequent encounter for fracture with routine healingS89.399D
- Gsubsequent encounter for fracture with delayed healingS89.399G
- Ksubsequent encounter for fracture with nonunionS89.399K
- Psubsequent encounter for fracture with malunionS89.399P
- SsequelaS89.399S
Which MS-DRGs does S89.399D group to?
S89.399D sits in MDC 08 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 559Aftercare, Musculoskeletal System and Connective Tissue with MCCmedical
- 560Aftercare, Musculoskeletal System and Connective Tissue with CCmedical
- 561Aftercare, Musculoskeletal System and Connective Tissue without CC/MCCmedical
How is S89.399D listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S89.39, the nearest indexed parent of S89.399D. Use them to find the family, then select the specific code.
- Fracture, traumatic › fibula › lower end › physeal › specified NEC (abduction) (adduction) (separation)
Use additional code — inherited from Chapter 19
Report an additional code alongside S89.399D to fully describe the condition. S89.399D is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of S89.399D, but a patient may have both at the same time. When documentation supports it, S89.399D and the excluded code may both be reported.
Excludes2 — not included here — inherited from S80-S89
The conditions below are not part of S89.399D, but a patient may have both at the same time. When documentation supports it, S89.399D and the excluded code may both be reported.
Excludes2 — not included here — inherited from S89
The conditions below are not part of S89.399D, but a patient may have both at the same time. When documentation supports it, S89.399D and the excluded code may both be reported.
- other and unspecified injuries of ankle and foot (S99.-)
How long has S89.399D existed?
S89.399D has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.