Skip to content
HCC Buddy home

HCC Buddy Code Book

Skip to code book content
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

Convulsions of newborn

See Tabular List: P90

P90, Convulsions of newborn

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

Not listed for this effective period.

Excludes 1

official source
  • benign myoclonic epilepsy in infancy (G40.3-)
  • benign neonatal convulsions (familial) (G40.3-)

Excludes 2

official source

No Excludes 2 note is listed in this source payload.

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

Convulsions of newborn

See Tabular List: P90

P90, Convulsions of newborn

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

Not listed for this effective period.

Excludes 1

official source
  • benign myoclonic epilepsy in infancy (G40.3-)
  • benign neonatal convulsions (familial) (G40.3-)

Excludes 2

official source

No Excludes 2 note is listed in this source payload.

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 201 Seizure Disorders and Convulsions (V28)V24 source requiredRxHCC source requiredESRD/PACE source requiredHCC 120 HHS-HCC 120; HHS-HCC 2026 benefit year (HHS-HCC)

RAF Value

V28: RAF: 0.245V24 RAF source requiredRxHCC RAF source requiredESRD/PACE RAF source requiredHHS-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 201

Seizure Disorders and Convulsions

RAF: 0.245

HHS-HCC

HCC 120

HHS-HCC 120; 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
P90Billable

Convulsions of newborn

CMS-HCC V28

HCC 201

RAF 0.245

ACA/HHS

HCC 120

RAF Varies by metal level

Reviewed by the HCC Buddy Coding TeamFY2026 Apr update

Code

P90

V28 HCC

HCC 201

RAF

0.245

Compare tray

Add close codes to compare documentation differences.