S83.411A ICD-10-CM Code: Sprain of medial collateral ligament of right knee, initial encounter
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Inpatient Payment Groups (MS-DRG)
MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.
- MS-DRG 562 — FRACTURE, SPRAIN, STRAIN AND DISLOCATION EXCEPT FEMUR, HIP, PELVIS AND THIGH WITH MCC (MDC 08)
- MS-DRG 563 — FRACTURE, SPRAIN, STRAIN AND DISLOCATION EXCEPT FEMUR, HIP, PELVIS AND THIGH WITHOUT MCC (MDC 08)
- MS-DRG 963 — OTHER MULTIPLE SIGNIFICANT TRAUMA WITH MCC (MDC 24)
- MS-DRG 964 — OTHER MULTIPLE SIGNIFICANT TRAUMA WITH CC (MDC 24)
- MS-DRG 965 — OTHER MULTIPLE SIGNIFICANT TRAUMA WITHOUT CC/MCC (MDC 24)
A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S83.411A in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- 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
- traumatic rupture of joint or ligament of knee
- traumatic subluxation of joint or ligament of knee
- traumatic tear of joint or ligament of knee
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- derangement of patella (M22.0-M22.3)
- injury of patellar ligament (tendon) (S76.1-)
- internal derangement of knee (M23.-)
- old dislocation of knee (M24.36)
- pathological dislocation of knee (M24.36)
- recurrent dislocation of knee (M22.0)
- strain of muscle, fascia and tendon of lower leg (S86.-)
- 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)
Code Also
Additional codes that may be required to fully describe the encounter.
- any associated open wound
Frequently Asked Questions (FAQ) & Clinical Guidance
Does S83.411A require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S83.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to S83.411A in its code family, with their registry titles.
- S83.409A — Sprain of unspecified collateral ligament of unspecified knee, initial encounter
- S83.409D — Sprain of unspecified collateral ligament of unspecified knee, subsequent encounter
- S83.409S — Sprain of unspecified collateral ligament of unspecified knee, sequela
- S83.41 — Sprain of medial collateral ligament of knee
- S83.411 — Sprain of medial collateral ligament of right knee
- S83.411D — Sprain of medial collateral ligament of right knee, subsequent encounter
- S83.411S — Sprain of medial collateral ligament of right knee, sequela
- S83.412 — Sprain of medial collateral ligament of left knee
- S83.412A — Sprain of medial collateral ligament of left knee, initial encounter
- S83.412D — Sprain of medial collateral ligament of left knee, subsequent encounter