S83.61XD (Sprain of the superior tibiofibular joint and ligament, right knee, subsequent encounter) compared with S86 (Injury of muscle, fascia and tendon at lower leg level), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Distinct conditions — both may be reported.
“strain of muscle, fascia and tendon of lower leg (S86.-)”
An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.
Source: CMS ICD-10-CM tabular instructional notes
Yes, when both are documented. S83.61XD carries an Excludes2 note covering S86: “strain of muscle, fascia and tendon of lower leg (S86.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
| S83.61XDSprain of the superior tibiofibular joint and ligament, right knee, subsequent encounter | S86Injury of muscle, fascia and tendon at lower leg level | |
|---|---|---|
| Billing status | Billable | Non-billable header Report instead: S86.001A, S86.001D, S86.001S, S86.002A, S86.002D |
| Classification | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Sprain of the superior tibiofibular joint and ligament, right knee, subsequent encounter is a billable ICD-10-CM diagnosis code (S83.61D). | Injury of muscle, fascia and tendon at lower leg level is a non-billable ICD-10-CM category code (S86). |
| 7th character | The appropriate 7th character is to be added to each code from category S83 | The appropriate 7th character is to be added to each code from category S86 |
| Includes | avulsion of joint or ligament of knee laceration of cartilage, joint or ligament of knee sprain of cartilage, joint or ligament of knee traumatic hemarthrosis of joint or ligament of knee | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources