Summary & Overview
HCPCS M1448: Personality Disorder Diagnosis for Measurement
HCPCS Level II code M1448 designates patients with an active diagnosis of personality disorder recorded at any time prior to the end of a measurement period. This code functions primarily as a quality-measure and diagnosis-capture marker within behavioral health and integrated care workflows, enabling payers and providers to track prevalence and measure inclusion for performance reporting at a national level. National payers routinely referenced in analyses include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will find a concise explanation of what M1448 represents, the clinical contexts in which it is used, and the typical sites of service where the code is applied. The publication also covers payer coverage considerations, common reporting use cases, and where available, benchmarking and policy updates that affect measure reporting. Content emphasizes clinical context and reporting implications rather than reimbursement guidance. Data not provided in the input for specific modifiers, associated taxonomies, ICD-10 mappings, related codes, or a service-line breakdown is noted as unavailable.
Billing Code Overview
HCPCS Level II code M1448 indicates patients with an active diagnosis of personality disorder any time prior to the end of the measure assessment period. This code is used to identify the presence of a personality disorder diagnosis during a specified measurement timeframe and supports tracking of behavioral health diagnoses for quality measurement and reporting.
-
Service type: Behavioral health diagnosis capture and measure reporting
-
Typical site of service: Outpatient behavioral health clinics, psychiatric practices, primary care settings with behavioral health integration, and other ambulatory care settings
Data not available in the input for modifiers, associated taxonomies, ICD-10 diagnoses, related codes, and service line.
Clinical & Coding Specifications
Clinical Context
A 32-year-old patient with longstanding emotional instability, impulsivity, and recurrent interpersonal conflicts presents to an outpatient behavioral health clinic for follow-up. The patient has a documented active diagnosis of a personality disorder recorded anytime during the assessment period, most commonly borderline personality disorder. The clinical workflow begins with intake or routine psychiatry/therapy visit during which the provider reviews history, verifies active psychiatric diagnoses in the problem list, and documents the diagnosis of personality disorder for quality-measure abstraction. Relevant clinicians include psychiatrists, psychiatric nurse practitioners, licensed clinical social workers, and psychologists. Typical documentation includes diagnostic formulation, treatment plan (psychotherapy modalities such as dialectical behavior therapy or medication management when indicated), and confirmation that the personality disorder diagnosis is active during the measure assessment period. Typical sites of service are outpatient behavioral health clinics, community mental health centers, ambulatory psychiatry practices, and integrated primary care clinics where behavioral health is delivered.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure or other service | Use when a qualifying E/M visit is provided on the same day as another psychiatric procedure and both are distinctly documented |