Version 2024

2024 ICD-10-CM Diagnosis Code S83.4

Sprain of collateral ligament of knee

ICD-10-CM Code:
S83.4
ICD-10 Code for:
Sprain of collateral ligament of knee
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    (S00–T88)
    • Injuries to the knee and lower leg
      (S80-S89)
      • Dislocation and sprain of joints and ligaments of knee
        (S83)

S83.4 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of sprain of collateral ligament of knee. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Sprain of collateral ligament of knee

Non-specific codes like S83.4 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for sprain of collateral ligament of knee:

  • S83.40 for Sprain of unspecified collateral ligament of knee - NON-BILLABLE CODE

  • S83.401 for Sprain of unspecified collateral ligament of right knee - NON-BILLABLE CODE

  • Use S83.401A for initial encounter - BILLABLE CODE

  • Use S83.401D for subsequent encounter - BILLABLE CODE

  • Use S83.401S for sequela - BILLABLE CODE

  • S83.402 for Sprain of unspecified collateral ligament of left knee - NON-BILLABLE CODE

  • Use S83.402A for initial encounter - BILLABLE CODE

  • Use S83.402D for subsequent encounter - BILLABLE CODE

  • Use S83.402S for sequela - BILLABLE CODE

  • S83.409 for Sprain of unspecified collateral ligament of unspecified knee - NON-BILLABLE CODE

  • Use S83.409A for initial encounter - BILLABLE CODE

  • Use S83.409D for subsequent encounter - BILLABLE CODE

  • Use S83.409S for sequela - BILLABLE CODE

  • S83.41 for Sprain of medial collateral ligament of knee - NON-BILLABLE CODE

  • S83.411 for Sprain of medial collateral ligament of right knee - NON-BILLABLE CODE

  • Use S83.411A for initial encounter - BILLABLE CODE

  • Use S83.411D for subsequent encounter - BILLABLE CODE

  • Use S83.411S for sequela - BILLABLE CODE

  • S83.412 for Sprain of medial collateral ligament of left knee - NON-BILLABLE CODE

  • Use S83.412A for initial encounter - BILLABLE CODE

  • Use S83.412D for subsequent encounter - BILLABLE CODE

  • Use S83.412S for sequela - BILLABLE CODE

  • S83.419 for Sprain of medial collateral ligament of unspecified knee - NON-BILLABLE CODE

  • Use S83.419A for initial encounter - BILLABLE CODE

  • Use S83.419D for subsequent encounter - BILLABLE CODE

  • Use S83.419S for sequela - BILLABLE CODE

  • S83.42 for Sprain of lateral collateral ligament of knee - NON-BILLABLE CODE

  • S83.421 for Sprain of lateral collateral ligament of right knee - NON-BILLABLE CODE

  • Use S83.421A for initial encounter - BILLABLE CODE

  • Use S83.421D for subsequent encounter - BILLABLE CODE

  • Use S83.421S for sequela - BILLABLE CODE

  • S83.422 for Sprain of lateral collateral ligament of left knee - NON-BILLABLE CODE

  • Use S83.422A for initial encounter - BILLABLE CODE

  • Use S83.422D for subsequent encounter - BILLABLE CODE

  • Use S83.422S for sequela - BILLABLE CODE

  • S83.429 for Sprain of lateral collateral ligament of unspecified knee - NON-BILLABLE CODE

  • Use S83.429A for initial encounter - BILLABLE CODE

  • Use S83.429D for subsequent encounter - BILLABLE CODE

  • Use S83.429S for sequela - BILLABLE CODE

Coding Guidelines

The appropriate 7th character is to be added to each code from block Dislocation and sprain of joints and ligaments of knee (S83). Use the following options for the aplicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Patient Education


Knee Injuries and Disorders

Your knee joint is made up of bone, cartilage, ligaments and fluid. Muscles and tendons help the knee joint move. When any of these structures is hurt or diseased, you have knee problems. Knee problems can cause pain and difficulty walking.

Knee problems are very common, and they occur in people of all ages. Knee problems can interfere with many things, from participation in sports to simply getting up from a chair and walking. This can have a big impact on your life.

The most common disease affecting the knee is osteoarthritis. The cartilage in the knee gradually wears away, causing pain and swelling.

Injuries to ligaments and tendons also cause knee problems. A common injury is to the anterior cruciate ligament (ACL). You usually injure your ACL by a sudden twisting motion. ACL and other knee injuries are common sports injuries.

Treatment of knee problems depends on the cause. In some cases your doctor may recommend knee replacement.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases


[Learn More in MedlinePlus]

Sprains and Strains

A sprain is a stretched or torn ligament. Ligaments are tissues that connect bones at a joint. Falling, twisting, or getting hit can all cause a sprain. Ankle and wrist sprains are common. Symptoms include pain, swelling, bruising, and being unable to move your joint. You might feel a pop or tear when the injury happens.

A strain is a stretched or torn muscle or tendon. Tendons are tissues that connect muscle to bone. Twisting or pulling these tissues can cause a strain. Strains can happen suddenly or develop over time. Back and hamstring muscle strains are common. Many people get strains playing sports. Symptoms include pain, muscle spasms, swelling, and trouble moving the muscle.

At first, treatment of both sprains and strains usually involves resting the injured area, icing it, wearing a bandage or device that compresses the area, and medicines. Later treatment might include exercise and physical therapy.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.