Block · Chapter 5

F50-F59 Behavioral syndromes associated with physiological disturbances and physical factors (F50-F59)

Block F50-F59 groups 7 categories with 66 billable codes in FY2027.

Where it sits

Chapter 5 Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
F50-F59 Behavioral syndromes associated with physiological disturbances and physical factors (F50-F59)

Neighbouring blocks

Categories in F50-F59

F50
Eating disorders
Pica → F50.89
- 30 billable codes
- 19 CC
- 19 with HCC
F51
Sleep disorders not due to a substance or known physiological condition
Somnambulism → F51.3
- 15 billable codes
F52
Sexual dysfunction not due to a substance or known physiological condition
Frigidity → F52.22
- 11 billable codes
F53
Mental and behavioral disorders associated with the puerperium, not elsewhere classified
Psychosis, psychoticpuerperal (NOS) → F53.1
- 2 billable codes
- 1 with HCC
F54
Psychological and behavioral factors associated with disorders or diseases classified elsewhere
Psoriasispsychogenic → F54
- Billable, no subdivisions
F55
Abuse of non-psychoactive substances
Laxative habit → F55.2
- 6 billable codes
F59
Unspecified behavioral syndromes associated with physiological disturbances and physical factors
Psychological and behavioral factors affecting medical condition → F59
- Billable, no subdivisions

Disorder (of) → F50, F51, F52, F53, F54 (48 entries)
Dysfunction → F52, F59 (46 entries)
Abuse → F55 (22 entries)
Insomnia (organic) → F51 (22 entries)
Failure, failed → F52 (7 entries)
Vomiting → F50 (7 entries)
Hypersomnia (organic) → F51 (6 entries)
Sleep → F51 (6 entries)
Anorexia → F50 (5 entries)
Tachycardia → F54 (5 entries)
Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic) → F54 (4 entries)
Dermatitis (eczematous) → F54 (4 entries)
Factor(s) → F54 (4 entries)
Loss (of) → F50, F52 (4 entries)
Bulimia (nervosa) → F50 (3 entries)

+66 more main terms; the search box finds them by word.

Chapter 5 instructions (Includes 1, Excludes2 1): printed on the chapter 5 page.