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Every policy word on this page is CMS's own. Verzi adds pins, receipts, and links only.

E0425

Oxygen and Oxygen Equipment

LCD L33797 · CMS's HCPCS descriptor for E0425: Stationary compressed gas system, purchase; includes regulator, flowmeter, humidifier, nebulizer, cannula or mask, and tubing.

Not on CMS's Required Prior Authorization List for DMEPOS on 2026-10-13. source

LCD L33797 · 12 versions, 2015 to today · last changed 2023-04-01 (R11)

Version 39 of LCD L33797: in force by CMS's dates 2023-01-01 to 2022-12-31. The policy text on this page comes from this archived version.

DME MAC jurisdictions
JA · Noridian 16013
CT, DE, DC, ME, MD, MA, NH, NJ, NY, PA, RI, VT
JB · CGS 17013
IL, IN, KY, MI, MN, OH, WI
JC · CGS 18003
AL, AR, CO, FL, GA, LA, MS, NM, NC, OK, PR, SC, TN, TX, VI, VA, WV
JD · Noridian 19003
AK, AS, AZ, CA, GU, HI, ID, IA, KS, MO, MT, NE, NV, ND, MP, OR, SD, UT, WA, WY
source

CMS's Who are the MACs jurisdiction pages (DME facts as of 2025-09-30) name each contractor and its states; the MCD's Contractor Information table on every DME LCD prints the contract numbers. Both read 2026-10-09. Verzi adds the state lookup only.

You are viewing version 39 (2023-01-01, superseded same day). Version 50 is in force today.

Codes CMS lists in this LCD's current version (version 50, 42 codes). CMS's download carries no list for version 39: A4575 A4606 A4608 A4615 A4616 A4617 A4619 A4620 A7525 A9900 E0424 E0425 E0430 E0431 E0433 E0434 E0435 E0439 E0440 E0441 E0442 E0443 E0444 E0445
18 more codes

Sections in this version: CMS National Coverage Policy · Coverage Indications, Limitations, and/or Medical Necessity · Coding Information · Associated Information · Sources of Information. Plus 3 sections marked N/A in this version.

Full verbatim text serves to customers · Customer? Log in

Version history, LCD L33797

CMS numbers each version. Each box shows the version's window by CMS's stated dates. Select a version to show it on this page. Versions superseded the same day they took effect never governed a claim, so the page hides them until you ask. Version numbers CMS never published to its archive do not exist as documents.

Revision history, every version

CMS's own change log, quoted, 11 entries. It does not change with the version shown. A revision (R-number) is a change CMS logged. The version (vN) is the snapshot that carries it.

R11 · 2023-04-01 · v50
Revision Effective Date: 04/01/2023
COVERAGE INDICATIONS, LIMITATIONS, AND/OR MEDICAL NECESSITY:
Removed: "Beneficiaries do not change group classification when going from initial coverage to continued coverage based upon changes in blood oxygen testing results" (effective 09/27/2021)


04/20/2023: Pursuant to the 21st Century Cures Act, these revisions do not require notice and comment because the revisions are non-discretionary updates due to updates to National Coverage Determination 240.2.
R10 · 2023-04-01 · v46
Revision Effective Date: 04/01/2023
CODING INFORMATION:
Added: N1, N2 and N3 modifiers


02/23/2023: Pursuant to the 21st Century Cures Act, these revisions do not require notice and comment because they are non-discretionary updates to CMS HCPCS coding determinations.
R9 · 2023-01-01 · v44
Revision Effective Date: 01/01/2023
COVERAGE INDICATIONS, LIMITATIONS, AND/OR MEDICAL NECESSITY:
Removed: “For all the overnight oximetry criteria described above, the 5 minutes does not have to be continuous.” under Overnight Oximetry Studies (effective 09/27/2021)
Removed: “otherwise the Group III presumption of non-coverage applies” under Overnight Oximetry Studies (effective 09/27/2021)
Removed: “for 5 minutes total (which need not be continuous)” under criterion 4 for overnight oximetry testing for beneficiaries with OSA (effective 09/27/2021)


01/12/2023: Pursuant to the 21st Century Cures Act, these revisions do not require notice and comment because the revisions are non-discretionary updates due to updates to National Coverage Determination 240.2.
R8 · 2023-01-01 · v39
Revision Effective Date: 01/01/2023
COVERAGE INDICATIONS, LIMITATIONS, AND/OR MEDICAL NECESSITY:
Added: Language in regard to CMS’ codification of nationally covered and non-covered indications fo
r home oxygen and oxygen equipment within the NCD Manual section 240.2 and section 1862(a)(1)(A) of the SSA (effective 09/27/2021)
Added: "therapy and oxygen equipment" after statements of "oxygen" and "home oxygen"
Added: "and oxygen equipment" after statements of "oxygen therapy" and "home oxygen therapy"
Added: "Initial coverage" of home oxygen therapy (effective 09/27/2021)
Revised: Reasonable and necessary criteria for Groups I and II home oxygen therapy and oxygen equipment (effective 09/27/2021)
Removed: References to "chronic stable state" (effective 09/27/2021)
Added: Coverage criteria for Group III home oxygen therapy and oxygen equipment (effective 09/27/2021)
Added: Group IV criteria
Removed: Long Term Oxygen Therapy (LTOT) Clinical Trials
Removed: “CLUSTER HEADACHES (CH)” section and related information
Added: “cluster headaches” as a medical condition example in Group III
Removed: All references and instructions for the Certificate of Medical Necessity
Added: Group I, II or III for high liter flow allowance criteria
SUMMARY OF EVIDENCE:
Removed: Summary of evidence information, due to not being applicable to the non-discretionary changes
ANALYSIS OF EVIDENCE (RATIONALE FOR DETERMINATION):
Removed: Analysis of evidence information, due to not being applicable to the non-discretionary changes
CODING INFORMATION:
Removed: Q0 modifier
APPENDICES:
Removed: Cluster headaches and LTOT special coverage rules
SOURCES OF INFORMATION:
Added: Home use of Oxygen and Home Oxygen Use to Treat Cluster Headaches Decision Memorandum (CAG-00296R2)
Added: Home Use of Oxygen Decision Memo (CAG-00296R3)
Removed: “CR7235 for cluster headache trial"
BIBLIOGRAPHY:
Removed: Bibliography information, due to not being applicable to the non-discretionary changes


11/17/2022: Pursuant to the 21st Century Cures Act, these revisions do not require notice and comment because the revisions are non-discretionary updates due to updates to National Coverage Determination 240.2, removal of National Coverage Determination 240.2.2 and CMS Change Request (CR) 12734: Elimination of Certificates of Medical Necessity and DME Information Forms.
R7 · 2020-08-02 · v28
Revision Effective Date: 08/02/2020
COVERAGE INDICATIONS, LIMITATIONS AND/OR MEDICAL NECESSITY:
Revised: "physicians" to "treating practitioners
Removed: Statement to refer to ICD-10 Codes that are Covered section in the LCD-related PA
Added: Statement to refer to ICD-10 codes in the LCD-related Policy Article
GENERAL:
Revised: Order information as a result of Final Rule 1713
SUMMARY OF EVIDENCE:
Added: Information related to topical oxygen
ANALYSIS OF EVIDENCE:
Added: Information related to topical oxygen
CODING INFORMATION:
Removed: Field titled “Bill Type”
Removed: Field titled “Revenue Codes”
Removed: Field titled “ICD-10 Codes that Support Medical Necessity”
Removed: Field titled “ICD-10 Codes that DO NOT Support Medical Necessity”
Removed: Field titled “Additional ICD-10 Information”
GENERAL DOCUMENTATION REQUIREMENTS:
Revised: Prescriptions (orders) to SWO
BIBLIOGRAPHY:
Added: Section related to topical oxygen
RELATED LOCAL COVERAGE DOCUMENTS:
Added: Response to Comments (A58247)
R6 · 2019-01-01 · v23
Revision Effective Date: 01/01/2019

COVERAGE INDICATIONS, LIMITATIONS AND/OR MEDICAL NECESSITY:
 Removed: NCD language
 Removed: Statement to refer to diagnosis code section below
 Added:
Refer to Covered ICD-10 Codes in the LCD-related Policy Article

HCPCS CODES:
Added: HCPCS E0447
ICD-10 CODES THAT SUPPORT MEDICAL NECESSITY:
 Moved: All diagnosis codes to the LCD-related Policy Article diagnosis code section per CMS instruction
ICD-10 CODES THAT DO NOT SUPPORT MEDICAL NECESSITY:
 Moved: Statement about noncovered diagnosis code moved to LCD-related Policy Article noncovered diagnosis code section per CMS instruction
R5 · 2018-08-01 · v19
Revision Effective Date: 08/01/2018
HCPCS MODIFIERS:
Added: Modifiers GA, GY, GZ, KX


06/07/2018: At this time 21st Century Cures Act will apply to new and revised LCDs that restrict coverage which requires comment and notice. This revision is not a restriction to the coverage determination; and, therefore not all the fields included on the LCD are applicable as noted in this policy.
R4 · 2018-04-01 · v16
Revision Effective Date: 04/01/2018
Coding Information
Revised: Modifier QE, QF, QG
Added: Modifier QA, QB QR


04/19/2018: At this time 21st Century Cures Act will apply to new and revised LCDs that restrict coverage which requires comment and notice. This revision is not a restriction to the coverage determination; and, therefore not all the fields included on the LCD are applicable as noted in this policy.
R3 · 2017-01-01 · v10
Revision Effective Date: 01/01/2017
COVERAGE INDICATIONS, INDICATIONS, LIMITATIONS AND/OR MEDICAL NECESSITY:
Removed: Standard Documentation Language
Added: New reference language and directions to Standard Documentation Requirements
Added: General Requirements
DOCUMENTATION REQUIREMENTS:
Removed: Standard Documentation Language
Added: General Documentation Requirements
Added: New reference language and directions to Standard Documentation Requirements
POLICY SPECIFIC DOCUMENTATION REQUIREMENTS:
Removed: Standard Documentation Language
Added: Direction to Standard Documentation Requirements
Removed: Miscellaneous section
Removed: PIM citation from Appendices
RELATED LOCAL COVERAGE DOCUMENTS:
Added: LCD-related Standard Documentation Requirements article
R2 · 2016-07-01 · v7
Effective July 1, 2016 oversight for DME MAC LCDs is the responsibility of CGS Administrators, LLC 18003 and 17013 and Noridian Healthcare Solutions, LLC 19003 and 16013. No other changes have been made to the LCDs.
R1 · 2015-10-01 · v4
Revision Effective Date: 10/31/2014
COVERAGE INDICATIONS, LIMITATIONS AND/OR MEDICAL NECESSITY:
Revised: Standard Documentation Language to add covered prior to a beneficiary’s Medicare eligibility
DOCUMENTATION REQUIREMENTS:
Revised: Standard Documentation Language to add who can enter date of delivery date on the POD
POLICY SPECIFIC DOUMENTATION REQUIREMENTS:
Revised: Diagnosis code references for Cluster Headaches
Receipts for auditors

Version 39 of LCD L33797, shown on this page: in force by CMS's dates 2023-01-01 to 2022-12-31. Archived 2026-09-26. CMS's copy · Our archived file. 8 of 8 sections are proven word-identical to the archived file.

Every archived version of LCD L33797 (12 versions, CMS's dates, window by the as-of rule). The Article rows are the Article versions in force on the start dates of these LCD versions.

DocumentVersionIn forceArchived onVerify
LCD L33797version 22015-10-01, superseded same day2026-09-26CMS's copy · Our archived file
LCD L33797version 42015-10-01 to 2016-06-302026-09-26CMS's copy · Our archived file
LCD L33797version 72016-07-01 to 2016-12-312026-09-26CMS's copy · Our archived file
LCD L33797version 102017-01-01 to 2018-03-312026-09-26CMS's copy · Our archived file
LCD L33797version 162018-04-01 to 2018-07-312026-09-26CMS's copy · Our archived file
LCD L33797version 192018-08-01 to 2018-12-312026-09-26CMS's copy · Our archived file
LCD L33797version 232019-01-01 to 2020-08-012026-09-26CMS's copy · Our archived file
LCD L33797version 282020-08-02 to 2022-12-312026-09-26CMS's copy · Our archived file
LCD L33797version 39 shown2023-01-01, superseded same day2026-09-26CMS's copy · Our archived file
LCD L33797version 442023-01-01 to 2023-03-312026-09-26CMS's copy · Our archived file
LCD L33797version 462023-04-01, superseded same day2026-10-09CMS's copy · Our archived file
LCD L33797version 502023-04-01 to today2026-09-26CMS's copy · Our archived file
Article A52514version 42015-10-01 to 2016-06-302026-09-26CMS's copy · Our archived file
Article A52514version 52016-07-01 to 2016-12-312026-09-26CMS's copy · Our archived file
Article A52514version 92017-01-01 to 2017-12-312026-09-26CMS's copy · Our archived file
Article A52514version 162018-04-01 to 2018-07-312026-09-26CMS's copy · Our archived file
Article A52514version 202018-08-01 to 2018-12-312026-09-26CMS's copy · Our archived file
Article A52514version 282019-01-01 to 2020-08-012026-09-26CMS's copy · Our archived file
Article A52514version 432020-08-02 to 2022-12-312026-09-26CMS's copy · Our archived file
Article A52514version 492023-01-01 to 2023-03-312026-09-26CMS's copy · Our archived file
Article A52514version 612023-04-01 to today2026-09-26CMS's copy · Our archived file
Article A55426version 122017-01-01 to 2017-04-192026-09-26CMS's copy · Our archived file
Article A55426version 382017-12-21 to 2018-05-062026-09-26CMS's copy · Our archived file
Article A55426version 412018-05-07 to 2018-08-272026-09-26CMS's copy · Our archived file
Article A55426version 622019-01-01 to 2019-12-312026-09-26CMS's copy · Our archived file
Article A55426version 912020-04-06 to 2022-12-312026-09-26CMS's copy · Our archived file
Article A55426version 1032023-01-01 to 2023-12-312026-09-26CMS's copy · Our archived file

Each archived file's page gives its sha256 fingerprint. A copy of the file hashes to the same value, byte for byte.

CMS's live page shows only the current version. To check a passage by eye, open CMS's copy of the same version number. A version's window ends on the earlier of CMS's stated end date and the day before the next version starts.

Every policy word on this page is CMS's, from the archived version named beside it. Verzi adds labels, highlights, citations and links only. Verzi-written summary content on this page: none.

Governing policies, as CMS lists them:

  • LCD L33797 · Oxygen and Oxygen Equipment
    CMS lists E0425 in group 1 of version 50. CMS's description, quoted: “STATIONARY COMPRESSED GAS SYSTEM, PURCHASE; INCLUDES REGULATOR, FLOWMETER, HUMIDIFIER, NEBULIZER, CANNULA OR MASK, AND TUBING”.
    Related Articles, as CMS lists them: Article A52514 · Article A55426 · Article A58247
  • LCD L40403 (on CMS's site; not in the Verzi KB yet)
    CMS lists E0425 in group 1 of version 11. CMS's description, quoted: “STATIONARY COMPRESSED GAS SYSTEM, PURCHASE; INCLUDES REGULATOR, FLOWMETER, HUMIDIFIER, NEBULIZER, CANNULA OR MASK, AND TUBING”.

From CMS's LCD code table. HCPCS Level II codes only.

source

CMS's LCD code table in the Medicare Coverage Database download, archived 2026-10-09: Our archived file.

Watch E0425

One email when any policy cited for E0425 changes or gains a future effective date. Nothing else, ever.