F45.8 vs M43.6
F45.8 (Other somatoform disorders) compared with M43.6 (Torticollis), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. M43.6 carries an Excludes1 note covering F45.8: “psychogenic torticollis (F45.8)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| F45.8Other somatoform disorders | M43.6Torticollis | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | F01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99) | M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99) |
| Definition | Other somatoform disorders is a billable ICD-10-CM diagnosis code (F45.8). | Torticollis is a billable ICD-10-CM diagnosis code (M43.6). |
| Includes | Psychogenic dysmenorrhea Psychogenic dysphagia, including 'globus hystericus' Psychogenic pruritus Psychogenic torticollis | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources