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FY2027 ICD-10-CM reference

Q01: Encephalocele

By the HCC Buddy Coding Team

The official ICD-10-CM descriptor is Encephalocele. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.

Nonbillable heading. Verified against the official FY2027 order file.

CMS-HCC V28

Not applicable to this nonbillable heading

CMS-HCC V24

Not applicable to this nonbillable heading

ESRD

Not applicable to this nonbillable heading

PACE

Not applicable to this nonbillable heading

RxHCC

Not applicable to this nonbillable heading

HHS-HCC

Not applicable to this nonbillable heading

More specific FY2027 codes

FY2027 Tabular instructions

Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.

Instructional note

Codes from this chapter are not for use on maternal records

Source: Q00-QA1 (chapter, inherited).

Excludes2

inborn errors of metabolism (E70-E88)

Source: Q00-QA1 (chapter, inherited).

Includes

Arnold-Chiari syndrome, type III

Source: Q01 (category, direct).

Includes

encephalocystocele

Source: Q01 (category, direct).

Includes

encephalomyelocele

Source: Q01 (category, direct).

Includes

hydroencephalocele

Source: Q01 (category, direct).

Includes

hydromeningocele, cranial

Source: Q01 (category, direct).

Includes

meningocele, cerebral

Source: Q01 (category, direct).

Includes

meningoencephalocele

Source: Q01 (category, direct).

Excludes1

Meckel-Gruber syndrome (Q61.9)

Source: Q01 (category, direct).

Source: CMS FY2027 Tabular List and Alphabetic Index.

Open Tabular instructions and code details

Compare the FY2027 additions, removals and billable-status changes

What does Q01 mean in FY2027?

The official ICD-10-CM descriptor is Encephalocele. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.

Is Q01 billable in FY2027?

The FY2027 order file marks Q01 as a nonbillable heading. Select a complete billable child code.

Does Q01 map to an HCC?

Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.

Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.

Review the FY2026 April edition