Common Lower Extremity Diagnoses
Achilles tendonitis (M77.22) – This lower extremity code is used to describe the inflammation of the Achilles tendon, located in the lower leg behind ankle. It usually occurs due to overuse or degeneration of the tendon and can cause pain, stiffness, and difficulty walking
Ankle bursitis (M70.2) – This lower extremity code describes an inflammation of the bursa between the lower leg and ankle. Symptoms include pain, tenderness, redness, swelling and limited range of motion in the affected area.
Ankle instability (S93.4)– This lower extremity code is used to describe chronic instability of the ankle joint, often caused by previous injury or repeated strain on the ligaments. Symptoms include pain, swelling and difficulty maintaining balance while walking.
Ankle Osteoarthritis (M19.071) – This lower extremity code describes arthritis that affects the ankle joint. Symptoms include pain, swelling and stiffness in the affected area.
Ankle sprain (S93.40) – This lower extremity code is used to describe a tear or overstretch of the ligaments around the ankle joint. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Anterior Cruciate Ligament (ACL) Tears (M24.561) – This lower extremity code is used to describe a tear of the ACL, which is one of the four major ligaments that help support and stabilize the knee joint. Symptoms include pain, swelling and difficulty bearing weight on the affected side.
Avascular Necrosis (M87.09)– This lower extremity code is used to describe the death of bone tissue due to a lack of blood supply. Symptoms include pain, swelling and difficulty bearing weight on the affected area.
Baker’s Cyst (M25.571) – This lower extremity code is used to describe the buildup of fluid in the back of the knee. Symptoms include pain, swelling and stiffness behind the knee.
Bunions (M20.6)– This lower extremity code is used to describe a bony bump on the side of the big toe. Symptoms include pain, swelling and difficulty walking or wearing shoes due to pressure on the affected area.
Bursitis (M70.2) – This lower extremity code describes an inflammation of the bursa between bones, tendons, and muscles. Symptoms include pain, tenderness, redness, swelling and limited range of motion in the affected area.
Calf strain (M76.63) – This lower extremity code is used to describe a strain in the muscles of the lower leg. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Chondromalacia Patella (M23.6)– This lower extremity code is used to describe the softening and breakdown of cartilage beneath the kneecap. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Claw toe deformity (M21.04)– This lower extremity code is used to describe a deformity of the toes in which they are bent upwards. Symptoms usually include pain while wearing shoes and difficulty walking due to discomfort or pressure on the affected area.
Compartment Syndrome (M62.81)– This lower extremity code is used to describe a condition in which pressure builds up within the lower leg due to swelling or inflammation. Symptoms include pain, numbness and difficulty walking or bearing weight in the affected area.
DVT (Deep Vein Thrombosis) (I82.401)– This lower extremity code is used to describe a blood clot in one of the deep veins of the lower leg. Symptoms include pain, swelling and discoloration of the affected area.
Foot Sprains (S93.411)– This lower extremity code is used to describe a tear or overstretch of the ligaments around the foot. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Fungal infections (B35.2)– This lower extremity code is used to describe an infection caused by fungi. Symptoms include redness, itching and burning in the affected area.
Gout (M10.9) – This lower extremity code is used to describe a type of arthritis caused by the buildup of uric acid crystals in the lower extremities. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Hammertoes (M20.1) – This lower extremity code is used to describe a deformity of the toes in which they are bent downwards. Symptoms usually include pain while wearing shoes and difficulty walking due to discomfort or pressure on the affected area.
Hamstring tear (S83.401) – This lower extremity code describes a tear in one of the three muscles at the back of the thigh. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Heel Spurs (M77.21) – This lower extremity code is used to describe a bony outgrowth on the underside of the heel bone. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected area.
Hip Bursitis (M70.3) – This lower extremity code describes an inflammation of the bursa between the hip and thigh. Symptoms include pain, tenderness, redness, swelling and limited range of motion in the affected area.
Hip Impingement (M16.04) – This lower extremity code describes a condition that occurs when the hip bones rub together. Symptoms include pain, stiffness and difficulty walking or bearing weight on the affected side.
Hip Stress Fracture (S72.0) – This lower extremity code is used to describe a fracture of the hip caused by overuse or repetitive impact. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Iliotibial Band Syndrome (M76.52) – This lower extremity code is used to describe an inflammation of the iliotibial band, a thick fibrous band that runs down the outside of the leg. Symptoms include pain and difficulty walking or bearing weight on the affected side.
Ingrown Toenails (L60.0) – This lower extremity code is used to describe a condition in which a nail curves and grows into the soft tissue of the toe. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected area.
Knee Osteoarthritis (M17.0) – This lower extremity code is used to describe a degenerative condition of the knee joint. Symptoms include pain, stiffness and difficulty walking or bearing weight on the affected side.
Labral Tear (M25.551) – This lower extremity code is used to describe a tear of the hip labrum, which is a ring of cartilage that encircles the hip joint. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Meniscal Tears (M24.561) – This lower extremity code is used to describe a tear of the cartilage in the knee joint. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Metatarsalgia (M71.2) – This lower extremity code is used to describe a condition characterized by pain and inflammation in the metatarsal region of the foot. Symptoms include pain, tenderness and difficulty walking or bearing weight in the affected area.
Morton’s Neuroma (M72.2) – This lower extremity code is used to describe a condition caused by an inflamed nerve in the foot. Symptoms include pain, burning and tingling in the affected area.
Muscular strains and sprains (M25.51-M25.59) – This lower extremity code is used to describe a range of injuries to the muscles and tendons. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Myofascial Pain Syndrome (M79.7) – This lower extremity code is used to describe a condition characterized by pain and tenderness in the muscles caused by tension or overuse. Symptoms include tightness, burning and difficulty walking or bearing weight on the affected area.
Neuromas (M72.1) – This lower extremity code is used to describe nerve entrapment in the lower extremities. Symptoms include pain, burning and tingling in the affected area.
Osteomyelitis (M86.18) – This lower extremity code describes a bone infection. Symptoms include pain, tenderness and swelling in the affected area.
Patellar Instability (S83.501A) – This lower extremity code is used to describe a condition that occurs when the kneecap slips out of its groove. Symptoms include pain and difficulty walking or bearing weight on the affected side.
Patellar Tendinitis (M77.82) – This lower extremity code is used to describe an inflammation of the tendon connecting the kneecap to the lower leg. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Partial ACL Tear (M24.90) – This lower extremity code is used to describe a tear of the anterior cruciate ligament. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Peroneal tendonitis (M77.81) – This lower extremity code is used to describe an inflammation of the tendons that pass along the outside of the lower leg. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Piriformis Syndrome (M54.4) – This lower extremity code is used to describe a condition caused by irritation of the piriformis muscle. Symptoms include pain, numbness and tingling in the lower extremity.
Peroneal tendonitis (M77.81) – This lower extremity code is used to describe an inflammation of the tendons that pass along the outside of the lower leg. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Plantar Fasciitis (M72.0) – This lower extremity code is for a condition characterized by pain and inflammation in the plantar fascia, which is a band of tissue that supports the arch of the foot. Symptoms include pain, stiffness and difficulty walking or bearing weight in the affected area.
Plantar warts (B07.4) – This lower extremity code is used to describe a type of wart caused by viruses that infect the skin of the sole of the foot. Symptoms include pain, tenderness and difficulty walking or bearing weight in the affected area.
Quadriceps tendon tear (M77.85) – This lower extremity code is used to describe a tear of the tendon connecting the quadriceps muscle to the lower leg. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Sesamoiditis (M77.15) – This lower extremity code is for a condition characterized by inflammation of the sesamoid bones in the foot. Symptoms include pain, tenderness and difficulty walking in the affected area.
Shin splints (M76.86) – This lower extremity code is used to describe a condition characterized by pain in the lower leg due to overuse or strain of muscles and tendons. Symptoms include pain, tenderness and difficulty walking in the affected area.
Snapping Hip Syndrome (M53.1) – This lower extremity code is used to describe a condition characterized by a clicking or popping sensation in the hip joint during movement. Symptoms include pain, tenderness and difficulty walking in the affected area.
Stress fracture of lower limb (M84.81) – This lower extremity code is used to describe a condition characterized by a small crack in the bone due to overuse or strain of muscle and tendons. Symptoms include pain, tenderness and difficulty walking in the affected area.
Subungual hematoma (S61.210A) – This lower extremity code is used to describe a condition characterized by a collection of blood beneath the fingernail or toenail. Symptoms include pain, tenderness and difficulty walking in the affected area.
Synovitis (M25.51) – This lower extremity code is used to describe an inflammation of the synovial membrane in the lower extremity. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected side.
Tendinitis (M77.82) – This lower extremity code is used to describe an inflammation of the tendons in the lower extremity. Symptoms include pain, swelling and difficulty walking or bearing weight on the affected area.
Tibial stress fracture (S82.801A) – This lower extremity code is used to describe a condition characterized by a fracture of the tibia bone due to overuse or strain of muscles and tendons. Symptoms include pain, tenderness and difficulty walking in the affected area.