D3503

D3503 is the ICF code for Conversing with one person, classified under Activities and Participation. It describes initiating, maintaining, shaping and terminating a dialogue or interchange with one person, such as in pre-verbal or verbal play, vocal or verbal exchange between mother and child, or in discussing the weather with a friend.

D3503 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.