{
    "code": "01638",
    "coding_system": "CPT",
    "canonical_url": "https://localishealth.com/cpt/01638/2015/B",
    "release_specific_url": "https://localishealth.com/cpt/01638/2015/B",
    "description": "Covers the anesthesia care given while a surgeon replaces the shoulder joint with an artificial one, whether a standard or reverse implant is used. Within the shoulder anesthesia family, this is the entry for joint replacement itself rather than for arthroscopy, rotator cuff repair, or fracture fixation, which have their own codes. Care usually combines general anesthesia with a nerve block placed near the neck and collarbone to numb the arm for hours after surgery.",
    "answer": {
        "question": "How much does Medicare pay for CPT 01638?",
        "text": "CPT 01638 is an anesthesia code, so Medicare has no single national rate: payment is (base units + time units) × the locality's anesthesia conversion factor, so the amount varies by locality and case length (Q2 2015 release)."
    },
    "release": {
        "schedule": "pfs",
        "year": 2015,
        "quarter": "B",
        "label": "Q2 2015",
        "effective": "April 1 – June 30, 2015",
        "revision": 1
    },
    "status": {
        "code": "J",
        "non_facility_payable": false,
        "facility_payable": false
    },
    "national_rates_usd": {
        "office_non_facility": null,
        "facility": null,
        "sequestration_applied": false,
        "gpci": 1
    },
    "rvus": {
        "work": null,
        "practice_expense_non_facility": null,
        "practice_expense_facility": null,
        "malpractice": null
    },
    "formula": "(work_rvu × work_gpci + pe_rvu × pe_gpci + mp_rvu × mp_gpci) × conversion_factor",
    "conversion_factor": 35.7547,
    "source": {
        "label": "Physician relative value file (Q2 2015)",
        "cms_url": "https://www.cms.gov/medicare/medicare-fee-for-service-payment/physicianfeesched/downloads/rvu15b.zip",
        "local_source_url": "https://localishealth.com/sources/physician-fee-schedule/2015/B",
        "file": "PPRRVU15_V0213_Current.csv",
        "row": 4408,
        "sha256": "61c24302bb17747bddd4aa44ef136d9628930f35dd595e299d9a5370bd394705"
    },
    "modified_at": "2026-08-04T03:05:48+00:00"
}