Validate BCode — Outpatient Knee Arthroscopy

Outpatient surgical claim for knee arthroscopy at a hospital outpatient dept. All lines have BCodes — please validate correctness.

{
  "claim_id": "TEST-OS-2024-004",
  "claim_type": "institutional",
  "care_type": "outpatient",
  "bill_type": "131",
  "diagnoses": [
    {
      "code": "M23.51",
      "sequence": 1,
      "type": "principal"
    },
    {
      "code": "M17.11",
      "sequence": 2
    }
  ],
  "service_lines": [
    {
      "sequence": 1,
      "cpt_code": "29881",
      "revenue_code": "0360",
      "units": 1,
      "diagnosis_sequence": [
        1
      ],
      "existing_bcode": "21-N"
    },
    {
      "sequence": 2,
      "cpt_code": "29877",
      "revenue_code": "0360",
      "units": 1,
      "diagnosis_sequence": [
        1,
        2
      ],
      "existing_bcode": "21-N"
    },
    {
      "sequence": 3,
      "revenue_code": "0710",
      "units": 1,
      "diagnosis_sequence": [
        1
      ],
      "existing_bcode": "21-N"
    },
    {
      "sequence": 4,
      "revenue_code": "0250",
      "units": 1,
      "diagnosis_sequence": [
        1
      ],
      "existing_bcode": "20-N"
    }
  ],
  "provider": {
    "name": "Lakeside Orthopedic Hospital",
    "specialty": "Orthopedic Surgery",
    "npi": "7779876543"
  },
  "patient": {
    "age": 45,
    "gender": "F"
  }
}