Authentic Knee Injury ICD 10 Code: Your Stress-Free 2025 Reference

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Understanding Knee Injury ICD 10 Code and More

Knee injuries are a common occurrence, affecting people of all ages and activity levels. They can range from minor sprains to severe fractures and ligament tears. In this blog post, we’ll explore the ICD-10 codes for knee injuries, their definitions, causes, signs and symptoms, diagnosis, treatment options, and potential complications.

Knee Injury ICD 10 Code

The International Classification of Diseases, 10th Revision (ICD-10) provides a standardized system for coding medical conditions. Here are some relevant codes for knee injuries:

General Knee Injury: S80 (Superficial injury of knee and lower leg)
Right Knee Injury: S80.411A (Unspecified superficial injury of right knee)
Left Knee Injury: S80.912A (Unspecified superficial injury of left knee)
Bilateral Knee Injury: M17.0 (Bilateral primary osteoarthritis of knee)

Lower Leg Injury & Knee Injury ICD 10 Code

S80 Superficial injury of knee and lower leg
S81 Open wound of knee and lower leg
S82 Fracture of lower leg, including ankle
S83 Dislocation and sprain of joints and ligaments of knee
S84 Injury of nerves at lower leg level
S85 Injury of blood vessels at lower leg level
S86 Injury of muscle, fascia and tendon at lower leg level
S87 Crushing injury of lower leg
S88 Traumatic amputation of lower leg
S89 Other and unspecified injuries of lower leg

M24.361 Pathological dislocation of right knee, not elsewhere classified
M24.362 Pathological dislocation of left knee, not elsewhere classified
M24.369 Pathological dislocation of unspecified knee, not elsewhere classified

Knee Bursitis ICD 10 Codes

M70.40 Prepatellar bursitis, unspecified knee
M70.41 Prepatellar bursitis, right knee
M70.42 Prepatellar bursitis, left knee

M70.5 Other bursitis of knee
M70.50 …… unspecified knee
M70.51 …… right knee
M70.52 …… left knee
M71.561 Other bursitis, not elsewhere classified, right knee
M71.562 Other bursitis, not elsewhere classified, left knee
M71.569 Other bursitis, not elsewhere classified, unspecified knee

M71.061 Abscess of bursa, right knee
M71.062 Abscess of bursa, left knee
M71.069 Abscess of bursa, unspecified knee
M71.161 Other infective bursitis, right knee
M71.162 Other infective bursitis, left knee
M71.169 Other infective bursitis, unspecified knee

Knee Osteophyte ICD 10 Codes

M25.761 Osteophyte, right knee
M25.762 Osteophyte, left knee

Knee Infective (teno)synovitis ICD 10 Codes

M65.161 Other infective (teno)synovitis, right knee
M65.162 Other infective (teno)synovitis, left knee
M65.169 Other infective (teno)synovitis, unspecified knee

Knee Ganglion ICD 10 Codes

M67.461 Ganglion, right knee
M67.462 Ganglion, left knee
M67.469 Ganglion, unspecified knee

Knee Plica Syndrome ICD 10 Codes

M67.50 Plica syndrome, unspecified knee
M67.51 Plica syndrome, right knee
M67.52 Plica syndrome, left knee

Disorders of synovium- Knee ICD 10 Codes

M67.861 Other specified disorders of synovium, right knee
M67.862 Other specified disorders of synovium, left knee
M67.863 Other specified disorders of tendon, right knee
M67.864 Other specified disorders of tendon, left knee
M67.869 Other specified disorders of synovium and tendon, unspecified knee

Knee Synovial cyst of popliteal space [Baker] ICD 10 Codes

M71.20 Synovial cyst of popliteal space [Baker], unspecified knee
M71.21 Synovial cyst of popliteal space [Baker], right knee
M71.22 Synovial cyst of popliteal space [Baker], left knee

Calcium deposit in bursa ICD 10 Codes

M71.461 Calcium deposit in bursa, right knee
M71.462 Calcium deposit in bursa, left knee
M71.469 Calcium deposit in bursa, unspecified knee

Patellar tendinitis ICD 10 Codes

M76.50 Patellar tendinitis, unspecified knee
M76.51 Patellar tendinitis, right knee
M76.52 Patellar tendinitis, left knee

Definition of Knee Injury

A knee injury involves trauma to one or more tissues that make up the knee joint, including bones, cartilage, ligaments, tendons, and muscles. Common knee injuries include fractures, dislocations, ligament tears, and meniscus tears.

Causes of Knee Injury

Knee injuries can result from various factors, including:

Overuse: Repetitive activities like running or jumping can lead to overuse injuries.
Trauma: Sudden impacts, falls, or twisting motions can cause acute injuries.
Sports: Contact sports and activities with rapid direction changes increase the risk of knee injuries.
Aging: Degenerative changes in the knee joint can lead to injuries.
Obesity: Excess weight puts additional stress on the knee joints.

Signs and Symptoms of Knee Injury

Common signs and symptoms of a knee injury include:

Pain: Varying degrees of pain depending on the severity of the injury.
Swelling: Inflammation around the knee joint.
Bruising: Discoloration due to bleeding under the skin.
Instability: Feeling of the knee giving way or being unstable.
Restricted Movement: Difficulty bending or straightening the knee.
Locking: The knee may catch or lock during movement.

Diagnosis of Knee Injury

Diagnosing a knee injury typically involves:

Medical History: Reviewing the patient’s medical history and symptoms.
Physical Examination: Assessing the knee for swelling, bruising, and range of motion.
Imaging Tests: X-rays, MRI, or CT scans to visualize the internal structures of the knee.
Arthroscopy: A minimally invasive procedure to examine and treat knee injuries.

Treatment for Knee Injury

Treatment options for knee injuries depend on the severity and type of injury:

Rest and Ice: Initial treatment to reduce pain and swelling.
Compression: Using bandages or braces to support the knee.
Elevation: Keeping the knee elevated to reduce swelling.
Physical Therapy: Exercises to strengthen the muscles around the knee and improve flexibility.
Medications: Pain relievers and anti-inflammatory drugs.
Surgery: In severe cases, surgical intervention may be necessary to repair damaged structures.

Complications of Knee Injury

Potential complications of knee injuries include:

Chronic Pain: Persistent pain that may require long-term management.
Instability: Ongoing instability that affects mobility.
Arthritis: Development of osteoarthritis due to cartilage damage.
Infection: Risk of infection, especially after surgery.
Reduced Functionality: Long-term impact on the ability to perform daily activities.

Conclusions

Knee injuries are a significant health concern that can impact one’s quality of life. Understanding the ICD-10 codes, causes, signs and symptoms, diagnosis, treatment options, and potential complications is crucial for effective management and recovery. If you suspect a knee injury, it’s essential to seek medical attention promptly to ensure proper diagnosis and treatment.

References

Free 2025 ICD-10-CM Codes

ICD-10 Version:2019

ICD Code Lists

FAQs on Knee Injury ICD 10 Code

Q1: What is the ICD-10 code for a knee sprain?

A1: For a medial collateral ligament sprain of the right knee, use S83.241A; for the left knee, use S83.242A.

Q2: How do I code for chronic knee pain?

A2: Chronic knee pain without a specific diagnosis can be coded as M25.561 (right knee) or M25.562 (left knee).

Q3: Is there a difference in ICD-10 codes for acute vs. chronic knee injuries?

A3: Yes, acute injuries like fractures or sprains have codes specific to the encounter type, while chronic conditions like osteoarthritis have distinct codes (e.g., M17.0 for bilateral osteoarthritis).