F45.8 vs R14
F45.8 and R14 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.
The official note, declared on R14
psychogenic aerophagy (F45.8)
F45.8
Other somatoform disorders
Billable
- Chapter 5
- Mental, Behavioral and Neurodevelopmental disorders
- Section
- F40-F48
Use when the record says
- Psychogenic dysmenorrhea
- Psychogenic dysphagia, including 'globus hystericus'
- Psychogenic pruritus
- Psychogenic torticollis
- Somatoform autonomic dysfunction
- Teeth grinding
Indexed under
- Aerophagy, aerophagia (psychogenic)
- Angioneurosis
- Da Costa's syndrome
- Effort syndrome (psychogenic)
- Globus (hystericus)
R14
Flatulence and related conditions
Not billable
- Chapter 18
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
- Section
- R10-R19
These two codes sit in different chapters of the Tabular List, which is usually the clearest signal that they describe different underlying processes rather than different degrees of the same one.
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027