S82.866F — Nondisplaced Maisonneuve's fracture of unspecified leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
Is S82.866F billable?
Yes, but S82.866F is an unspecified code. S82.866F is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S82.866F 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 S82.866F — the more specific alternatives are listed below.
More specific alternatives
- S82.861FDisplaced Maisonneuve's fracture of right leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
- S82.862FDisplaced Maisonneuve's fracture of left leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
- S82.864FNondisplaced Maisonneuve's fracture of right leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
- S82.865FNondisplaced Maisonneuve's fracture of left leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
S82.866F at a glance
| Code | S82.866F |
|---|---|
| Description | Nondisplaced Maisonneuve's fracture of unspecified leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "F" | subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing |
What does the 7th character "F" mean in S82.866F?
In S82.866F, the 7th character F means subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing. The 7th character is required for S82.866F to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
- Ainitial encounter for closed fractureS82.866A
- Binitial encounter for open fracture type I or IIS82.866B
- Cinitial encounter for open fracture type IIIA, IIIB, or IIICS82.866C
- Dsubsequent encounter for closed fracture with routine healingS82.866D
- Esubsequent encounter for open fracture type I or II with routine healingS82.866E
- Fsubsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healingS82.866F
- Gsubsequent encounter for closed fracture with delayed healingS82.866G
- Hsubsequent encounter for open fracture type I or II with delayed healingS82.866H
- Jsubsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healingS82.866J
- Ksubsequent encounter for closed fracture with nonunionS82.866K
- Msubsequent encounter for open fracture type I or II with nonunionS82.866M
- Nsubsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunionS82.866N
- Psubsequent encounter for closed fracture with malunionS82.866P
- Qsubsequent encounter for open fracture type I or II with malunionS82.866Q
- Rsubsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunionS82.866R
- SsequelaS82.866S
Which MS-DRGs does S82.866F group to?
S82.866F 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 S82.866F listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S82.86, the nearest indexed parent of S82.866F. Use them to find the family, then select the specific code.
- Fracture, traumatic › Maisonneuve's (abduction) (adduction) (separation)
- Fracture, traumatic › Maisonneuve's › nondisplaced (abduction) (adduction) (separation)
Excludes1 — never code together — inherited from S82
The conditions below can never be reported together with S82.866F on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- traumatic amputation of lower leg (S88.-)
Use additional code — inherited from Chapter 19
Report an additional code alongside S82.866F to fully describe the condition. S82.866F 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 S82.866F, but a patient may have both at the same time. When documentation supports it, S82.866F and the excluded code may both be reported.
Excludes2 — not included here — inherited from S80-S89
The conditions below are not part of S82.866F, but a patient may have both at the same time. When documentation supports it, S82.866F and the excluded code may both be reported.
Excludes2 — not included here — inherited from S82
The conditions below are not part of S82.866F, but a patient may have both at the same time. When documentation supports it, S82.866F and the excluded code may both be reported.
How long has S82.866F existed?
S82.866F 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.