Unspecified acquired deformity of unspecified limb
ICD-10 M21.90 is a billable code used to indicate a diagnosis of unspecified acquired deformity of unspecified limb.
M21.90 refers to an unspecified acquired deformity of an unspecified limb, which encompasses a variety of conditions that result in structural abnormalities of the limbs due to non-congenital factors. Acquired deformities can arise from trauma, infections, inflammatory conditions, or degenerative diseases. Common examples include hallux valgus, where the big toe deviates laterally, leading to a bony prominence at the base of the toe. Other deformities may involve the fingers or toes, such as claw toes or hammer toes, which can result from muscle imbalances or nerve damage. Corrective procedures may include surgical interventions like osteotomies or arthroplasties to realign bones or joints. Accurate coding requires careful documentation of the deformity's nature, cause, and any associated symptoms or functional limitations, as these factors can influence treatment options and outcomes.
Detailed descriptions of the deformity, imaging results, and treatment plans.
Patients presenting with acquired deformities post-trauma or surgery.
Ensure that all relevant diagnostic tests and imaging are documented to support the diagnosis.
Foot examination findings, patient history, and treatment rationale.
Patients with hallux valgus or other toe deformities seeking corrective surgery.
Document the functional impact of the deformity on the patient's daily activities.
Performed for hallux valgus correction.
Pre-operative assessment, imaging, and post-operative care notes.
Orthopedic or podiatric specialties should document the rationale for surgery.
Use M21.90 when the documentation indicates an acquired deformity of a limb but does not specify the type or location. Ensure that the clinical notes support the use of this unspecified code.
