Hallux valgus (acquired), unspecified foot M20. 10 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2022 edition of ICD-10-CM M20. 10 became effective on October 1, 2021.
Bunions (also known as hallux valgus) occur when there is misalignment of the first metatarsal (one of five long bones that run from mid-foot to the toes) in relation to the big toe. The often-noticeable "bump" is not new bone or overgrowth of bone but actually the metatarsal itself.
Hallux valgus is the most common deformity of the forefoot and the toes. 23% of 18-65 year olds and over 35% of those over 65 years have hallux valgus. Due to the noticeable form it's also referred to as a bunion or ganglion. Here the big toe moves out of its alignment and points toward the outside edge of the foot.
Hallux valgus deformity is a very common pathological condition which commonly produces painful disability. It is characterised as a combined deformity with a malpositioning of the first metatarsophalangeal joint caused by a lateral deviation of the great toe and a medial deviation of the first metatarsal bone.
Hallux refers to the big toe, while rigidus indicates that the toe is rigid and cannot move. Hallux rigidus is actually a form of degenerative arthritis.
Toes on the human left foot. The innermost toe (left in image), which is normally called the big toe, is the hallux.
Unlike hallux rigidus, hallux valgus is the result of your bones shifting, with the resulting protrusion going outwards, and not upwards like with hallux rigidus's osteophyte. Hallux valgus, or a bunion, with a bump on the left big toe.
Definition of hallux : the innermost digit (such as the big toe) of a hind or lower limb.
Summary. Valgus alignment is known as knock knee syndrome. It shifts the load-bearing axis to the outside of the knee joint, forcing the knees to be positioned inward. Varus alignment, or bow leg syndrome, causes the load-bearing axis of the leg to shift to the inside, pushing the knees outward.
Hallux valgus (HV) is a common anatomical deformity leading to pain and difficulty with footwear and mobility. Bilateral HV deformity is much more common than unilateral although it remains unclear whether the severity of deformity is equal between feet.
The condition medically is called Hallux Abducto Valgus, which simply means that the big toe (hallux) moves towards the second toe resulting in the bony bump called a bunion. This causes the foot to become broader, and the big toe joint to no longer function properly.