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ICD-10-PCS 2027 procedure code

F0100YZMuscle Performance Assessment of Neurological System - Head and Neck using Other Equipment

✓ Valid for 2027Non-O.R. procedure

Short description: Muscle Perform Assess Neuro Head, Neck w Oth Equip

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About F0100YZ

F0100YZ is the ICD-10-PCS code for a motor and/or nerve function assessment procedure on the neurological system - head and neck using a muscle performance approach with other equipment (qualifier: none). In ICD-10-PCS, motor and/or nerve function assessment means measurement of motor, nerve, and related functions.

In plain terms, this corresponds to manual testing of muscle function, the ICD-9-CM procedure title it maps to (93.04).

For a different body part, codes include F0110YZ (neurological system - upper back / upper extremity), F0120YZ (neurological system - lower back / lower extremity), F0130YZ (neurological system - whole body), F01D0YZ (integumentary system - head and neck), F01F0YZ (integumentary system - upper back / upper extremity), F01G0YZ (integumentary system - lower back / lower extremity) and 6 more.

The same procedure with a different approach is coded F0105YZ (range of motion and joint integrity) and F0106YZ (sensory awareness/processing/integrity).

With a different device, use F0100EZ (orthosis), F0100FZ (assistive, adaptive, supportive or protective), F0100UZ (prosthesis) and F0100ZZ (none).

It is a non-O.R. procedure that is part of the MS-DRG logic for DRG 945 (Rehabilitation with CC/MCC) and DRG 946 (Rehabilitation without CC/MCC), under the surgical category “Rehabilitation”.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

What each character means

1. Section
FPhysical Rehabilitation and Diagnostic Audiology
2. Section Qualifier
0Rehabilitation
3. Type
1Motor and/or Nerve Function Assessment

Measurement of motor, nerve, and related functions

4. Body System / Region
0Neurological System - Head and Neck
5. Type Qualifier
0Muscle Performance
6. Equipment
YOther Equipment
7. Qualifier
ZNone

Other versions of this procedure

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

MDC 23 · Factors Influencing Health Status and Other Contacts with Health Services · Rehabilitation

ICD-9-CM equivalent

Converter →
  • 93.04Manual testing of muscle functionapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about F0100YZ

Is F0100YZ a valid ICD-10-PCS code for 2027?

Yes. F0100YZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is F0100YZ an O.R. procedure?

No. F0100YZ is designated non-O.R. in MS-DRG v44.0.

What DRG does F0100YZ group to?

Depending on the principal diagnosis, F0100YZ can group to MS-DRG 945 and MS-DRG 946.

What is the ICD-9 procedure code for F0100YZ?

The CMS GEMs map F0100YZ to ICD-9-CM 93.04 (Manual testing of muscle function).