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HCPCS E0447 · Level II · DME code

E0447: Portable oxygen contents, liquid, 1 month's supply = 1 unit, HCPCS Level II DME code

Compiled from CMS files by the QuickIntell RCM Editorial Team · Data effective · Method: reference methodology · Report a data correction

Data currency: HCPCS Level II file: October 2026 (effective October 1, 2026); DMEPOS fee schedule: DME26-D (October 2026) (effective October 1, 2026); NCCI MUE tables: 2026 Q4 (effective October 1, 2026); NCCI PTP edits: v323r0 (2026 Q4) (effective October 1, 2026); OPPS Addendum B: October 2026 (effective October 1, 2026); Medicare Coverage Database LCD export: MCD release October 8, 2026 (effective October 4, 2026). Next CMS release: January 1, 2027 (quarterly update) for the HCPCS Level II file and DMEPOS fee schedule and NCCI MUE tables and NCCI PTP edits and OPPS Addendum B; weekly, every Thursday for the Medicare Coverage Database LCD export.

Key facts for E0447

Medicare payment
$84.85 to $95.80
DMEPOS non-rural state fees
Coverage code
D
special coverage instructions apply
DME supplier MUE
1
MAI 2
OPPS status
SI Y
Non-implantable DME
NCCI PTP pairs
0
practitioner file
LCDs and articles
1 / 0

TL;DR

CMS describes HCPCS E0447, added in 2019, as "Portable oxygen contents, liquid, 1 month's supply = 1 unit, prescribed amount at rest or nighttime exceeds 4 liters per minute (lpm)". DMEPOS fees for E0447, a OX (oxygen and oxygen equipment) item, run $84.85 in DC, DE, MD and 3 more to $95.80 in CO, ID, MT and 2 more, rural $109.97 in the October 2026 file. Its 2026 Q4 MUEs per date of service: practitioner 0 (MAI 3, CMS Policy); hospital outpatient 0 (MAI 3, CMS Policy); DME supplier 1 (MAI 2, Code Descriptor / CPT Instruction). 1 active LCD lists E0447: L33797 (Oxygen and Oxygen Equipment). OPPS status indicator Y: Non-implantable DME. HCPCS record: BETOS D1C (oxygen and supplies); pricing indicator 33; type of service P (lump-sum purchase of DME, prosthetics or orthotics). 2 other active codes open with "Portable oxygen contents"; related codes: E0443, E0444, E0446, E0431.

E0447 descriptor and code status

The October 2026 HCPCS Level II file describes E0447 as “Portable oxygen contents, liquid, 1 month's supply = 1 unit, prescribed amount at rest or nighttime exceeds 4 liters per minute (lpm)”. It sits in the E section (durable medical equipment), listed with the other E codes.

HCPCS file attributes of E0447
FieldValue
Short descriptorPort o2 cont, liq over 4 lpm
Added to HCPCS2019-01-01
Last actionN (no maintenance), effective 2019-01-01
Coverage codeD: special coverage instructions apply
Pricing indicator33: DMEPOS oxygen and oxygen equipment (floors and ceilings)
BETOS categoryD1C: oxygen and supplies
Type of serviceP: lump-sum purchase of DME, prosthetics or orthotics

Medicare payment for E0447

DMEPOS fees for E0447, a OX (oxygen and oxygen equipment) item, run $84.85 in DC, DE, MD and 3 more to $95.80 in CO, ID, MT and 2 more, rural $109.97 in the October 2026 file. The amounts below are national figures from the October 2026 CMS files; the contractor applies the locality, rural or state adjustment and the beneficiary's cost sharing.

DMEPOS fee schedule (DME26-D)

Jurisdiction D (DME MAC), payment category OX (oxygen and oxygen equipment). Fees are set per state; AK, HI, PR and VI are not subject to the national ceiling and floor and are listed separately. A rural fee applies only in ZIP codes on the CMS rural ZIP list.

DMEPOS fees for E0447 by modifier
ModifierFloor / ceilingNon-rural state rangeRural rangeAK / HI / PR / VI
none—$84.85 (DC, DE, MD…) to $95.80 (CO, ID, MT…)$109.97 (49 states)AK $110.11, HI $110.11, PR $110.11, VI $110.11

Hospital outpatient (OPPS Addendum B)

Status indicator Y (Non-implantable DME), with no separate OPPS payment rate.

Medically Unlikely Edits for E0447

Its 2026 Q4 MUEs per date of service: practitioner 0 (MAI 3, CMS Policy); hospital outpatient 0 (MAI 3, CMS Policy); DME supplier 1 (MAI 2, Code Descriptor / CPT Instruction). The DME supplier MUE is a date-of-service policy edit: units above the limit deny even when split across lines, and appeals rarely succeed.

MUE values for E0447 by setting
SettingMUE (units/DOS)MAICMS rationale
Practitioner services03 Date of Service Edit: ClinicalCMS Policy
Facility outpatient hospital03 Date of Service Edit: ClinicalCMS Policy
DME supplier12 Date of Service Edit: PolicyCode Descriptor / CPT Instruction

The MUE lookup for E0447 shows every setting next to any other code on the same claim.

NCCI edits and add-on rules

No active practitioner PTP pair lists E0447 in v323r0.

E0447 is neither an add-on code nor a designated primary code in the 2026 Q4 NCCI add-on edit file.

Pair counts show exposure, not the answer for one claim. Check E0447 against a second code to see whether the pair bundles and whether a modifier can separate the services.

Medicare coverage policies for E0447

1 active Local Coverage Determination and 0 billing and coding articles list E0447. Each applies only in its contractor's jurisdiction, and the article carries the diagnosis codes that support the item or service.

Denials to expect on E0447

CARC 50 · N115

the diagnosis or documentation does not meet the LCD or billing article that lists E0447

CARC 151 · N362

units of E0447 exceed the DME supplier MUE of 1 per date of service

CARC 4

the modifier reported is inconsistent with the code

CARC 16

the claim lacks information needed to adjudicate the line, such as an order, NPI or required modifier

Where QuickIntell fits for E0447 claims

QuickAuth coordinates the requirement checks and documentation that DME claims for E0447 depend on, with human review of each case, and QuickRCM carries claim readiness and the CARC 50, 151 and modifier denials these items draw.

See QuickAuth for requirement checksSee QuickRCM for denial follow-upBook a meeting

Frequently asked questions: HCPCS E0447

What does HCPCS code E0447 describe?

"Portable oxygen contents, liquid, 1 month's supply = 1 unit, prescribed amount at rest or nighttime exceeds 4 liters per minute (lpm)" (short descriptor "Port o2 cont, liq over 4 lpm"), in the E section (durable medical equipment). Added 2019-01-01.

Is E0447 a CPT code?

No. E0447 is a CMS HCPCS Level II code; CPT codes are the AMA's five-character set.

What does Medicare pay for E0447?

DMEPOS fees for E0447, a OX (oxygen and oxygen equipment) item, run $84.85 in DC, DE, MD and 3 more to $95.80 in CO, ID, MT and 2 more, rural $109.97 in the October 2026 file.

How many units of E0447 can be billed per day?

Its 2026 Q4 MUEs per date of service: practitioner 0 (MAI 3, CMS Policy); hospital outpatient 0 (MAI 3, CMS Policy); DME supplier 1 (MAI 2, Code Descriptor / CPT Instruction). For the DME supplier MUE (MAI 2), units above 1 deny for the whole day as a policy limit; denials arrive as CARC 151.

Does Medicare cover E0447?

Coverage code D (special coverage instructions apply). 1 active LCD lists E0447: L33797 (Oxygen and Oxygen Equipment).

Sources

Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-10. Verify against the primary file before billing or contracting decisions. The reference methodology explains how each figure is computed from these files.

Disclaimer

This page is an operational reference compiled from CMS publications: the HCPCS Level II file, the physician, DMEPOS and clinical laboratory fee schedules, OPPS and ASC addenda, NCCI MUE, PTP and add-on edit tables and the Medicare Coverage Database. Amounts are Medicare national figures before locality and state adjustment; Medicaid and commercial payers set their own. CPT codes are shown as numbers only; CPT descriptors are copyright AMA. Nothing here is legal, clinical or billing advice.

Found a figure that does not match the CMS file? Report a data correction with the CMS file and the value you expected; the request reaches the editorial team through the contact form.