Find information on Hallux Valgus (Bunion) diagnosis, including ICD-10 code M20.1 and related medical billing codes. Learn about clinical documentation requirements for Hallux Valgus deformity, bunionette, and associated conditions like metatarsus primus varus. Explore resources for healthcare professionals covering Hallux Valgus treatment, surgical procedures like bunionectomy, and post-operative care. Understand the signs, symptoms, and diagnostic criteria for Hallux Valgus in this comprehensive guide for accurate medical coding and documentation.
Also known as
Hallux valgus (acquired)
Bony bump at the base of the big toe.
Hallux rigidus
Stiffness and limited movement of the big toe joint.
Pain in the toe(s)
Pain localized to the toes, including hallux valgus pain.
Other congenital deformities of foot
Includes congenital hallux valgus, present from birth.
Follow this step-by-step guide to choose the correct ICD-10 code.
Is the hallux valgus acquired?
When to use each related code
| Description |
|---|
| Bunion deformity of the great toe |
| Hammer toe deformity |
| Metatarsalgia |
Incorrect or missing laterality (right, left, bilateral) for Hallux Valgus (M20.1) impacts reimbursement and data accuracy.
Coding with unspecified M20.1 when more specific bunion diagnoses (e.g., with bursitis) are documented leads to undercoding.
Overlooking coexisting conditions like hammer toe, metatarsalgia, or overlapping fifth toe with Hallux Valgus affects DRG assignment.
Patient presents with complaints consistent with hallux valgus, commonly known as a bunion. The patient reports pain, swelling, and redness at the first metatarsophalangeal joint (MTPJ) of the affected foot. Symptoms are exacerbated by weight-bearing activities and wearing tight shoes. On physical examination, a prominent medial eminence at the first MTPJ is observed, with associated lateral deviation of the great toe (hallux). Range of motion of the first MTPJ is limited and painful. The patient's forefoot demonstrates widening and possible overlapping with the second toe. Assessment includes evaluation for associated conditions such as hammertoe, metatarsalgia, and sesamoiditis. Differential diagnoses include gout, arthritis, and bursitis. Initial treatment plan includes conservative management with wider shoe gear, orthotics, padding, and nonsteroidal anti-inflammatory drugs (NSAIDs). Patient education regarding activity modification and proper footwear will be provided. Surgical intervention, such as a bunionectomy (e.g., Chevron osteotomy, Lapidus procedure), may be considered if conservative treatment fails to provide adequate relief. ICD-10 code M20.10 will be used for Hallux Valgus, unspecified foot. Follow-up appointment scheduled in four weeks to assess response to treatment and discuss further management options.