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S83.411S vs S83.412S

S83.411S (Sprain of medial collateral ligament of right knee, sequela) compared with S83.412S (Sprain of medial collateral ligament of left knee, sequela), from the official CMS tabular data. S83.411S and S83.412S code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S83.411S
Right
Sprain of medial collateral ligament of right knee, sequela
S83.412S
Left
Sprain of medial collateral ligament of left knee, sequela

Same condition; these differ only in which side is documented.

These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.

Source: ICD-10-CM tabular list (laterality variant derived from the code title)

Can these codes be reported together?

Same condition, opposite side. S83.411S and S83.412S name the same condition on opposite sides of the body.

Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.

Side by side

S83.411SSprain of medial collateral ligament of right knee, sequelaS83.412SSprain of medial collateral ligament of left knee, sequela
Billing statusBillableBillable
ClassificationS00-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)
DefinitionSprain of medial collateral ligament of right knee, sequela is a billable ICD-10-CM diagnosis code (S83.411S).Sprain of medial collateral ligament of left knee, sequela is a billable ICD-10-CM diagnosis code (S83.412S).
7th characterThe appropriate 7th character is to be added to each code from category S83The appropriate 7th character is to be added to each code from category S83
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
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