Scope: This policy addresses outpatient Pulmonary Rehabilitation and defines the medical necessity, limitations, exclusions, coding and documentation requirements for supervised pulmonary rehabilitation programs.

Coverage stance: Pulmonary rehabilitation is covered with criteria when all medical necessity requirements are met (listed chronic pulmonary conditions, dyspnea, reduced exercise tolerance, symptoms despite medical management, functional thresholds, ability/motivation, and absence of contraindicating conditions).

Typical program expectations: A typical supervised course is up to 6 weeks or 36 hours of therapy, with initial and periodic reassessments and documentation; continuation beyond the typical course requires demonstration of progress and expectation of further improvement.

Goals: Pulmonary rehabilitation aims to stabilize or reverse impairments, restore maximal functional capacity and independence, improve day-to-day functioning and coping, and enable transfer of care to a home self-management regimen.

Components: Programs are multi-disciplinary and individualized and may include assessment, education, breathing exercises, respiratory muscle training, graded aerobic and strength exercise, nutritional interventions, psychosocial support, and lifestyle modification conducted in an outpatient setting.

Candidate selection: Ideal candidates are those with moderate to moderately severe disease, stable on standard medical therapy, motivated, physically able to participate, and without serious unstable comorbidities that would undermine benefit.

Individualization and transition: Every program should be individualized with a comprehensive initial evaluation, explicit goals, a documented treatment plan with frequencies and anticipated duration, periodic re-evaluations (about every 2–4 weeks) and the explicit objective of transitioning the patient to a home-based self-care exercise regimen once skills are acquired.

Utility by severity: The policy emphasizes PR is most useful for patients with COPD and is generally most beneficial for those with moderate to moderately severe disease; persons with very severe pulmonary impairment are not appropriate candidates.

Very severe pulmonary impairment: Dyspnea at rest, difficulty in conversation (one-word answers), inability to work, cessation of most or all usual activities making the patient housebound, often limited to bed or chair with dependency for most activities of daily living (ADLs).