ICD-10 · PDGM grouping
F48 Other nonpsychotic mental disorders
All 4 codes in the F48 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
4
Can lead a claim
4
Cannot lead a claim
0
What CMS assigns to F48
All 4 codes group to Behavioral Health. 1 of the 4 counts toward the Psychotic, major depressive, and dissociative disorders, includes unspecified dementia, eating disorder and intellectual disabilities comorbidity subgroup; 3 are assigned none. Every code can lead a claim. CMS attaches a code-first note to 1 of the 4.
- Psychotic, major depressive, and dissociative disorders, includes unspecified dementia, eating disorder and intellectual disabilities: counts toward the high comorbidity tier only in an interaction pair.
Code first
CMS grouper convention 28, on F48.2. Code first:
- amyotrophic lateral sclerosis (G12.21)
- multiple sclerosis (G35-)
- sequelae of cerebrovascular disease (I69.-)
- sequelae of traumatic intracranial injury (S06.-)
- underlying cause, if known, such as:
Every code in F48
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| F48.1 | Depersonalization-derealization syndrome | Can lead a claim | F | None |
| F48.2 | Pseudobulbar affect | Can lead a claim, code first applies | F | Psychotic, major depressive, and dissociative disorders, includes unspecified dementia, eating disorder and intellectual disabilities |
| F48.8 | Other specified nonpsychotic mental disorders | Can lead a claim | F | None |
| F48.9 | Nonpsychotic mental disorder, unspecified | Can lead a claim | F | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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