AutoICD API

B440

bBody Functions

Respiration functions

Functions of inhaling air into the lungs, the exchange of gases between air and blood, and exhaling air.

Exclusions(3)
  • additional respiratory functions
  • Exercise tolerance functions
  • Respiratory muscle functions

Child Codes (5)

Related ICD-10 Diagnoses(6)
Related ICD-11 Codes(6)

ICD-11 codes linked via ICD-10 crosswalk from conditions that include this ICF code.

Frequently Asked Questions
What is ICF code B440?

B440 is the ICF code for Respiration functions, classified under Body Functions. It describes functions of inhaling air into the lungs, the exchange of gases between air and blood, and exhaling air.

What ICD-10 conditions are associated with ICF code B440?

This ICF category appears in Core Sets for conditions like Diabetes Mellitus (E11), Stroke (I63), Chronic Obstructive Pulmonary Disease (J44), Obesity (E66), and 2 more. It is commonly assessed in rehabilitation, disability evaluation, and care planning for these conditions.

What ICD-11 codes are related to ICF code B440?

B440 is linked to 6 ICD-11 codes: 5A11, 5B81.Z, 8A40.Z, 8B11.3, and 2 more. These codes correspond to ICD-10 diagnoses whose ICF Core Sets include this functioning category.

What ICF component does B440 belong to?

B440 belongs to the Body Functions component of the ICF. Physiological functions of body systems, including psychological functions.

What are the subcategories under ICF code B440?

B440 has 5 child codes, including: B4400 (Respiration rate), B4401 (Respiratory rhythm), B4402 (Depth of respiration), and 2 more.

What is the ICF classification?

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.

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