B450

B450 is the ICF code for Additional functions of the respiratory system, classified under Body Functions. It describes additional functions related to breathing, such as producing and transporting secretion, coughing, sneezing and yawning.

This ICF category appears in Core Sets for conditions like Chronic Obstructive Pulmonary Disease (J44). It is commonly assessed in rehabilitation, disability evaluation, and care planning for these conditions.

B450 is linked to 1 ICD-11 code: CA22.Z. These codes correspond to ICD-10 diagnoses whose ICF Core Sets include this functioning category.

B450 belongs to the Body Functions component of the ICF. Physiological functions of body systems, including psychological functions.

B450 has 7 child codes, including: B4500 (Functions of breathing through the mouth), B4501 (Functions of coughing), B4502 (Functions of sneezing), and 4 more.

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.