International Classification of Functioning, Disability and Health (ICF)—categories of the component “Body functions” included in the Comprehensive ICF Core Set for ankylosing spondylitis
| ICF code | ICF category title | Point of decision in voting cycle* |
| Chapter 1 Mental functions | ||
| b130 | Energy and drive functions | Cycle 1; vote1 |
| b1300 | Energy level | Cycle 2; vote2 |
| b1301 | Motivation | Cycle 2; plenary |
| b134 | Sleep functions | Cycle 1; vote1 |
| b152* | Emotional functions | Cycle 1; plenary vote |
| Chapter 2 Sensory functions and pain | ||
| b210* | Seeing functions | Cycle 1: plenary vote |
| b280 | Sensation of pain | Cycle 1; vote1 |
| b28010 | Pain in head and neck | Cycle 2; vote2 |
| b28011 | Pain in chest | Cycle 2; vote2 |
| b28013 | Pain in back | Cycle 2; vote2 |
| b28014 | Pain in upper limb | Cycle 2; plenary |
| b28015 | Pain in lower limb | Cycle 2; vote2 |
| b28016 | Pain in joints | Cycle 2; plenary |
| b28018 | Pain body part, other specified | Cycle 2; plenary |
| Chapter 4 Functions of cardiovascular, immunological and respiratory system | ||
| b440 | Respiration functions | Cycle 1; vote1 |
| b4402 | Depth of respiration | Cycle 2; plenary |
| b455 | Exercise tolerance functions | Cycle 1; vote1 |
| Chapter 6 Genitourinary and procreation system | ||
| b640 | Sexual functions | Cycle 1; vote2 |
| Chapter 7 Neuromusculoskeletal and movement-related functions | ||
| b710 | Mobility of joint functions | Cycle 1; vote1 |
| b740* | Muscle endurance functions | Cycle 1; plenary vote |
| b770 | Gait pattern functions | Cycle 1; vote1 |
| b780 | Sensations related to muscles and movement functions | Cycle 1; plenary vote |
| b7800 | Sensation of muscle stiffness | Cycle 2; vote2 |
*Categories that would not have been selected based on the individual votes; vote1, category selected in the first working group discussions of a cycle; vote2, category selected in the second working group discussions of a cycle; plenary vote, category selected during the plenary discussion.