J84.82 — Adult pulmonary Langerhans cell histiocytosis
ICD-10-CM
Prior Authorization
No Prior Auth Required
Code is covered without prior authorization (high confidence)
Documentation Required
- This billing/coding guideline complements LCD L33459 (Computerized Axial Tomography (CT), Thorax); follow the LCD for clinical coverage and any required documentation or prior authorization rules.
- Claims must follow the complementary Local Coverage Determination (LCD L34430) and, when CPT 97000–97799 are used by PT/OT, must include documentation that the services meet the coverage and documentation requirements for physical or occupational therapy.
- Billing and coding for pulmonary stress testing must follow Local Coverage Determination (LCD) L33444; consult LCD L33444 for specific medical necessity, coding, and billing criteria.
- This article provides billing, coding, or other guidelines that complement LCD L33444 rather than standalone coverage criteria.
Key Coverage Criteria
- Therapeutic procedures whose principal aim is to treat a respiratory impairment must be billed using HCPCS codes G0237, G0238, or G0239.
- CT or MRI scans of the head or neck are covered when the medical record documents the scan is reasonable and necessary for diagnostic evaluation.
- Coverage requires documentation supporting clinical indication such as history and physical exam findings, laboratory results, and signs or symptoms that justify the diagnostic test.
- Therapeutic respiratory procedures (HCPCS G0237, G0238, G0239) using an individualized physical conditioning and exercise program with breathing techniques are covered for patients with documented activity limitations.
- Pulmonary function tests (PFTs) represented by CPT codes 94070, 94200, 94640, 94726, 94727, and 94729 are covered when reasonable and medically necessary with supporting clinical documentation and a written order by a physician or appropriate NPP.
- Spirometry (CPT 94010, 94011, 94012, 94060, 94070, 94150, 94200, 94375, 94726, 94727) is covered when clinically indicated and documented in the medical record.
20 Active Policies
A58761 — Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
J05
L39044 — MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
J05
A57205 — Billing and Coding: Oximetry Services
J12
L35434 — Oximetry Services
J12
Related Codes
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