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HCC Buddy
Alphabetic Index and Tabular path
HCC Buddy public API, FY2026 Apr updateSource load source requiredSource year 2026Updated 2026-04-01

Index trail

Schizotypal disorder

See Tabular List: F21

F21, Schizotypal disorder

Selected code, source checked for the selected effective period

Commonly confused codes

official source

Not listed for this effective period.

Code details and official notes
billableHCC mapped

Includes

official source
  • Borderline schizophrenia
  • Latent schizophrenia
  • Latent schizophrenic reaction
  • Prepsychotic schizophrenia
  • Prodromal schizophrenia
  • Pseudoneurotic schizophrenia
  • Pseudopsychopathic schizophrenia
  • Schizotypal personality disorder

Excludes 1

official source

No Excludes 1 note is listed in this source payload.

Excludes 2

official source
  • Asperger's syndrome (F84.5)
  • schizoid personality disorder (F60.1)

Code First

official source

Not listed for this effective period.

Use Additional

official source

Not listed for this effective period.

Code Also

official source

Not listed for this effective period.

7th character

official source

Not listed for this code in the selected Tabular payload.

Placeholder X

official source

Not listed for this code in the selected Tabular payload.

Laterality

official source

No laterality instruction is listed for this code in the selected Tabular payload.

Effective period

source required
  • FY2026 Apr update
  • Source year 2026
  • Updated 2026-04-01
  • HCC Buddy public API
HCC Buddy
HCC Buddy
Alphabetic Index and Tabular path
HCC Buddy public API, FY2026 Apr updateSource load source requiredSource year 2026Updated 2026-04-01

Index trail

Schizotypal disorder

See Tabular List: F21

F21, Schizotypal disorder

Selected code, source checked for the selected effective period

Commonly confused codes

official source

Not listed for this effective period.

Code details and official notes
billableHCC mapped

Includes

official source
  • Borderline schizophrenia
  • Latent schizophrenia
  • Latent schizophrenic reaction
  • Prepsychotic schizophrenia
  • Prodromal schizophrenia
  • Pseudoneurotic schizophrenia
  • Pseudopsychopathic schizophrenia
  • Schizotypal personality disorder

Excludes 1

official source

No Excludes 1 note is listed in this source payload.

Excludes 2

official source
  • Asperger's syndrome (F84.5)
  • schizoid personality disorder (F60.1)

Code First

official source

Not listed for this effective period.

Use Additional

official source

Not listed for this effective period.

Code Also

official source

Not listed for this effective period.

7th character

official source

Not listed for this code in the selected Tabular payload.

Placeholder X

official source

Not listed for this code in the selected Tabular payload.

Laterality

official source

No laterality instruction is listed for this code in the selected Tabular payload.

Effective period

source required
  • FY2026 Apr update
  • Source year 2026
  • Updated 2026-04-01
  • HCC Buddy public API
HCC Buddy Insights

HCC Mapping

HCC 153 Personality Disorders; Anorexia/Bulimia Nervosa (V28)HCC 60 Personality Disorders (V24)HCC 133 Personality Disorders, Anxiety, and Other Specified Mental Disorders (RxHCC)HCC 60 Personality Disorders (ESRD/PACE)HCC 90 HHS-HCC 90; HHS-HCC 2026 benefit year (HHS-HCC)

RAF Value

V28: RAF: 0.396V24: RAF: 0.309RxHCC: RAF: 0.035ESRD/PACE: RAF: 0.066HHS-HCC: RAF: Varies by metal level

Model Period

FY2026 Apr update

Source

source required

Audit Caution

Close codes need documentation support before selection. Do not assume relationships.
Reviewed by the HCC Buddy Coding Team

HCC Buddy workflow band

HCC mapping, RAF, MEAT, source trail, and audit caution stay in view.

MEAT supportaudit cautionsource required

V28

HCC 153

Personality Disorders; Anorexia/Bulimia Nervosa

RAF: 0.396

V24

HCC 60

Personality Disorders

RAF: 0.309

RxHCC

RxHCC 133

Personality Disorders, Anxiety, and Other Specified Mental Disorders

RAF: 0.035

ESRD/PACE

HCC 60

Personality Disorders

RAF: 0.066

HHS-HCC

HCC 90

HHS-HCC 90; HHS-HCC 2026 benefit year

RAF: Varies by metal level

MEAT checklist

Reviewed by the HCC Buddy Coding Team

Monitor, Evaluate, Assess, or Treat must be supported in the provider note.

HCC Buddy guidance, not official ICD-10-CM text.

Audit caution

Reviewed by the HCC Buddy Coding Team

Close codes need documentation support before selection. Do not assume relationships.

HCC Buddy guidance, not official ICD-10-CM text.

Reviewer sign-off

Reviewed by the HCC Buddy Coding Team

MEAT, documentation support, audit cautions, and close-code guidance are reviewed and approved for this effective period.

HCC Buddy enrichment is separate from official source text.

Last updated: April 1, 2026 · Not a substitute for official coding guidelines. No PHI or patient data.
HCC Buddy Code Card
FY 2026 Apr update
F21Billable

Schizotypal disorder

CMS-HCC V28

HCC 153

RAF 0.396

CMS-HCC V24

HCC 60

RAF 0.309

RxHCC

RxHCC 133

RAF 0.035

Reviewed by the HCC Buddy Coding TeamFY2026 Apr update

Code

F21

V28 HCC

HCC 153

RAF

0.396

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