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A7509

Heat & moisture exchange sys

Filter holder and integrated filter housing, and adhesive, for use as a tracheostoma heat and moisture exchange system, each

Code system
HCPCS Level II
Status
Active
Billable
Yes
In effect from
2001-01-01
Request
curl https://api.healthcare.dev/v1/codes/hcpcs/A7509 \
  -H "Authorization: Bearer $HDEV_API_KEY"
200 OK · application/json
{
  "data": {
    "code": "A7509",
    "parent": null,
    "status": "active",
    "system": "hcpcs",
    "display": "Heat & moisture exchange sys",
    "billable": true,
    "attributes": {
      "betos": "D1F",
      "coverage": "D",
      "action_code": "N",
      "type_of_service": "P",
      "pricing_indicator": "37",
      "action_effective_date": "2001-01-01"
    },
    "description": "Filter holder and integrated filter housing, and adhesive, for use as a tracheostoma heat and moisture exchange system, each",
    "replaced_by": [],
    "effective_end": null,
    "effective_start": "2001-01-01",
    "care_categories": [
      "breathing-supplies"
    ],
    "care_category_details": [
      {
        "slug": "breathing-supplies",
        "name": "Breathing, nebulizer and tracheostomy supplies",
        "confidence": 0.95,
        "derivation": "source_stated",
        "evidence": [
          {
            "url": "https://www.cms.gov/medicare/coding-billing/healthcare-common-procedure-system/quarterly-update",
            "anchor": "HCPCS Level II range A7047-A7599"
          }
        ],
        "as_of": "2026-10-01T00:00:00.000Z"
      }
    ]
  },
  "meta": {
    "source": "cms-hcpcs",
    "data_version": "2026-10"
  }
}

CMS attributes

A7509 in the HCPCS file

betos
D1F
coverage
D
action code
N
type of service
P
pricing indicator
37
action effective date
2001-01-01

Change history

Lifecycle

A7509 has been in effect since 2001-01-01. This page shows HCPCS Level II release 2026-10.

Add as_of=YYYY-MM-DD to the request to get this code exactly as it was on a past date. The change feed (GET /v1/changes) lists what each release added, changed or retired across the whole dataset; a per-code change list isn't published yet.

Use it

Look up A7509 from code or an agent

curl
curl https://api.healthcare.dev/v1/codes/hcpcs/A7509 \
  -H "Authorization: Bearer $HDEV_API_KEY"
MCP prompt
Using the healthcare.dev MCP server, look up HCPCS Level II code A7509. Tell me what it covers, whether it is active and since when, and any CMS attributes it has.

Source: CMS, release 2026-10. Public domain (D-series CDT codes excluded). Reference data, not medical or billing advice.