Summary & Overview

HCPCS M1236: Baseline Modified Rankin Scale > 2

HCPCS Level II code M1236 denotes a baseline Modified Rankin Scale (mRS) assessment with a score greater than 2, reflecting patients with moderate-to-severe functional impairment. Nationally, standardized documentation of baseline disability is important for care planning, eligibility for specific interventions, longitudinal outcome tracking, and accurate claims reporting. Clear capture of baseline mRS can affect care coordination and appropriate service utilization tracking across post-acute and ambulatory settings.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the clinical context of a documented baseline mRS > 2, typical sites of service, and what to expect in payer coverage patterns. The publication also summarizes common billing considerations, available benchmarking context where present, and notes on documentation elements that support claims adjudication.

This summary is written for a national audience and highlights why precise reporting of baseline functional status matters for clinicians, coders, and payers seeking consistent measurement of disability and outcomes. Data not available in the input where specific payer edits, associated taxonomies, ICD-10 pairings, and related codes would normally be listed.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareM1236HCPCS Level IImodified rankin scalefunctional assessmentbaseline disabilityneurologystroke follow-upoutpatientrehabilitation

Billing Code Overview

HCPCS Level II code M1236 is described as Baseline mrs > 2, indicating an assessment related to a patient's baseline Modified Rankin Scale (mRS) greater than 2. This descriptor suggests the service documents a baseline functional disability level above minimal-to-moderate impairment.

Service type: Functional status assessment / baseline disability evaluation
Typical site of service: Outpatient clinic or ambulatory care setting where baseline functional assessments are performed, including neurology clinics, stroke follow-up visits, and rehabilitation evaluation areas.

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A 72-year-old patient with a recent ischemic stroke is evaluated in the neurology clinic to determine baseline functional status prior to consideration of advanced therapies or rehabilitation planning. The clinician documents a Modified Rankin Scale (mRS) score greater than 2, indicating at least moderate disability requiring some help but able to walk unassisted. The workflow includes: initial evaluation of neurological status, review of imaging and hospital records, structured mRS assessment (patient interview and caregiver report), documentation of baseline mRS > 2 in the medical record, and communication of this baseline to rehabilitation services, case management, and payors for coverage determinations. Typical site of service is an outpatient neurology clinic, stroke clinic, inpatient neurology ward, or specialized stroke center visit where baseline functional status informs care planning and eligibility for certain interventions or post-acute services.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	When services require substantially greater work than usual for the procedure and documentation supports the extra work.
`23`	Unusual anesthesia

Taxonomy Code	Specialty	Notes
`207RN0200X`	Neurology	Stroke neurologists perform baseline mRS assessment and documentation.
`2080P0207X`	Physical Medicine & Rehabilitation	PM&R physicians coordinate functional assessment and rehab planning.
`364S00000X`	Internal Medicine	Hospitalists or internists document baseline functional status during inpatient stay.
`363L00000X`	Nurse Practitioner	NPs in neurology or stroke clinics often perform the mRS assessment and documentation.
`363A00000X`	Physician Assistant	PAs in neurology or rehabilitation clinics perform assessments and care coordination.

CPT Code	Description	Relationship to This Procedure
`99203`	Office or other outpatient visit for evaluation and management of a new patient, moderate complexity	Common code for initial outpatient neurology evaluation where baseline mRS > 2 is documented.
`99214`	Office or other outpatient visit for established patient, moderate to high complexity	Used for follow-up outpatient visits documenting changes in functional status and baseline mRS reference.
`96127`	Brief emotional/behavioral assessment (e.g., depression inventory), per standardized instrument	Sometimes used adjunctively to screen cognition or mood that affect functional status in stroke patients.
`97530`	Therapeutic activities, direct (one-on-one) patient contact by the provider	Rehabilitation service initiated after baseline mRS > 2 identifies need for therapy.
`97110`	Therapeutic exercises to develop strength and endurance, range of motion and flexibility	Common physical therapy code used during rehabilitation planning following baseline functional assessment.

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