B21003

B21003 is the ICF code for Monocular acuity of near vision, classified under Body Functions. It describes seeing functions of sensing size, form and contour, using either right or left eye alone, for objects close to the eye.

B21003 belongs to the Body Functions component of the ICF. Physiological functions of body systems, including psychological functions.

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.