D1721

D1721 is the ICF code for Using skills and strategies to perform complex numeric operations and calculations, classified under Activities and Participation. It describes applying mathematical procedures and methods such as algebra, calculus and geometry to solve problems.

D1721 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.