C96.6 — Unifocal Langerhans-cell histiocytosis
ICD-10-CM
Prior Authorization
No Prior Auth Required
Code is covered without prior authorization (high confidence)
Documentation Required
- A specific written order (referral/prescription) by the physician or appropriate NPP must be on file for all respiratory care services.
- Medical records must fully document that services were reasonable and medically necessary, with results and usage of the test documented in the record and available upon request.
- Each claim must be submitted with ICD-10-CM code(s) that reflect the patient's actual condition; listing a diagnosis code alone does not justify the test without supporting clinical context.
- Referrals/orders must include clinical diagnoses and requested tests; indications in the primary medical record must be available for review.
Key Coverage Criteria
- 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.
- Lung volume determination (CPT 94013, 94726, 94727, 94728) and diffusion capacity testing (CPT 94729) are covered when medically necessary and documented.
- Pulmonary stress testing (CPT 94617, 94618, 94619, 94621) is covered when clinically indicated and supported by the medical record.
- Device demonstration and/or evaluation (CPT 94664) is covered when used for device demonstration/evaluation purposes and documented as such in the medical record.
20 Active Policies
L38835 — MolDX: Minimal Residual Disease Testing for Cancer
J05
A57630 — Billing and Coding: Percutaneous Vertebral Augmentation (PVA) for Vertebral Compression Fracture (VCF)
J05
A59004 — Billing and Coding: MolDX: Minimal Residual Disease Testing for Hematologic Cancers
J05
L38213 — Percutaneous Vertebral Augmentation (PVA) for Vertebral Compression Fracture (VCF)
J05
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