D451

D451 is the ICF code for Going up and down stairs, classified under Activities and Participation. It describes moving upwards and downwards so that at least one foot is always on the ground such as ascending and descending stairs or curbs.

D451 belongs to the Activities and Participation component of the ICF. Execution of tasks and involvement in life situations.

The ICF (International Classification of Functioning, Disability and Health) is a WHO classification that describes how health conditions affect a person's functioning — body functions, body structures, activities and participation, and environmental factors. It complements ICD-10/ICD-11 diagnosis codes with functioning assessment data used in rehabilitation, disability evaluation, and care planning.