Chest Physiotherapy and Airway Clearance Devices — CPB 0067 | AETNA Coverage Update

Aetna modified CPB 0067 covering chest physiotherapy and airway clearance devices, effective September 26, 2025. Here's what billing teams need to know about coverage criteria, affected codes, and required actions.

Aetna, a CVS Health company, updated Clinical Policy Bulletin 0067, which governs the Aetna chest physiotherapy coverage policy for airway clearance devices and related services. This modification affects CPT codes 94667, 94668, 94669, and 97124, along with 14 HCPCS codes spanning durable medical equipment like E0483 (high frequency chest wall oscillation systems) and E0482 (cough stimulating devices). If your practice bills for pulmonary clearance services or supplies DME to patients with cystic fibrosis, bronchiectasis, neuromuscular disease, or other chronic respiratory conditions, this policy touches your revenue directly.

Quick-Reference Table

Aetna Chest Physiotherapy Coverage Criteria and Medical Necessity Requirements 2025

The CPB 0067 Aetna system coverage policy covers chest physiotherapy and airway clearance services when specific medical necessity criteria are met. Coverage is not automatic — selection criteria drive every covered code in this bulletin.

Covered services include manual chest wall manipulation (CPT 94667 and 94668 for cupping, percussing, and vibration to facilitate lung function), mechanical chest wall oscillation per session (CPT 94669), and therapeutic massage procedures (CPT 97124). On the DME side, Aetna covers HCPCS E0483 for high frequency chest wall oscillation (HFCWO) air-pulse generator systems with hoses and vest, E0482 for cough stimulating devices, E0480 for electric or pneumatic percussors, and E0484 for oscillatory positive expiratory pressure (OPEP) devices. Replacement components — A7025 (HFCWO vest), A7026 (HFCWO hose), and A7020 (cough stimulating device interface) — are also covered for patient-owned equipment.

Respiratory muscle training codes G0237 and G0238 are covered when selection criteria are met. The flutter device (S8185) and postural drainage board (E0606) round out the covered HCPCS set. The pattern here is clear: Aetna will pay for these services and devices, but only when the documentation supports the specific diagnosis and clinical need.

Medical necessity must be tied to a qualifying diagnosis. The policy maps to 301 ICD-10-CM codes. The core conditions include cystic fibrosis (E84.0–E84.9), bronchiectasis, neuromuscular diseases like spinal muscular atrophy (G12.0–G12.5), motor neuron disease (G12.20–G12.29), poliomyelitis sequelae (B91), and metabolic disorders including CFTR-related conditions (E88.810–E88.819). If your patient's primary diagnosis isn't in that list, expect a claim denial.

Prior authorization requirements for specific devices — particularly HFCWO systems billed under E0483 — are standard for high-cost DME under Aetna. Confirm prior auth requirements for each plan before dispensing equipment. This is especially true for pediatric patients with neuromuscular conditions, where the clinical justification bar is high and documentation gaps lead to denials.

Aetna Chest Physiotherapy Exclusions and Non-Covered Indications

Three HCPCS codes are explicitly not covered for the indications listed in CPB 0067. This is where billing teams lose money — billing these codes expecting reimbursement and then absorbing the denial.

E0469 (lung expansion airway clearance, continuous high frequency oscillation, and nebulization device) is not covered. Neither is E0481 (intrapulmonary percussive ventilation system and related accessories) or A7021 (supplies and accessories for the lung expansion airway clearance continuous high frequency oscillation device). Aetna draws a hard line between covered HFCWO systems (E0483 and accessories) and these three non-covered alternatives.

The real issue here is product substitution at the DME level. Some suppliers bill E0469 or E0481 as alternatives to E0483, expecting equivalent coverage. They don't get it under this policy. If your DME billing team uses any of these three codes, stop. They generate denials under CPB 0067 regardless of diagnosis.

Coverage Indications at a Glance

Aetna Chest Physiotherapy Billing Guidelines and Action Items 2025

1. Audit your charge capture for E0469, E0481, and A7021 before September 26, 2025.
These codes are non-covered under CPB 0067. If any of them appear in your Aetna charge master or DME billing templates, remove them now. Claims using these codes will deny. Recover any paid claims that may be at risk for recoupment.

2. Verify your ICD-10-CM mapping against the 301-code covered diagnosis list.
The policy covers 301 specific ICD-10-CM codes. Your billing team needs to confirm that common encounter diagnoses — especially the newer CFTR-related metabolic syndrome codes (E88.810–E88.819) and the expanded G12 motor neuron disease codes — are loaded correctly in your EHR and billing system. A mismatch here is a denial waiting to happen.

3. Confirm prior authorization workflows for E0483 and E0482 before the effective date.
High-cost DME — particularly HFCWO systems billed under E0483 and cough stimulating devices under E0482 — almost always require prior authorization under Aetna commercial plans. Check each plan contract. Build the prior auth step into your DME order workflow before September 26, 2025.

4. Update your airway clearance device billing documentation templates.
For CPT 94667, 94668, and 94669, document the specific technique used, the session duration, and the clinical indication tied to a covered ICD-10-CM code. Aetna's selection criteria require this linkage. Vague documentation — "chest PT per order" — invites medical necessity denials on audit.

5. Check replacement component billing for patient-owned HFCWO systems.
A7025 (replacement vest) and A7026 (replacement hose) are covered only for use with patient-owned equipment. If you're billing these codes for loaner or rental units, that's a billing error. Confirm your DME records accurately reflect patient ownership status before submitting replacement component claims.

6. Review G0237 and G0238 billing for respiratory therapy services.
These respiratory muscle training codes are covered when selection criteria are met. If your respiratory therapists bill these codes, make sure the face-to-face service documentation and the qualifying diagnosis are both in the claim and the medical record. Missing either creates a clean denial.

If you're not sure how CPB 0067 applies to your specific patient mix — particularly if you treat high volumes of pediatric neuromuscular or rare metabolic disease patients — talk to your compliance officer before the September 26 effective date.

CPT, HCPCS, and ICD-10 Codes for Chest Physiotherapy and Airway Clearance Under CPB 0067

Covered CPT Codes (When Selection Criteria Are Met)

Covered HCPCS Codes (When Selection Criteria Are Met)

Non-Covered HCPCS Codes (Per CPB 0067)

Key ICD-10-CM Diagnosis Codes (Selected from 301 Total)

The full covered diagnosis list runs 301 ICD-10-CM codes. Pull the complete list from the Aetna CPB 0067 source document and cross-reference against your EHR's active diagnosis library. Don't rely on a subset.