Guides / All DME
All DME Applies to every DMEPOS claimMedicare DME Documentation Requirements: the checklist every claim needs
Citations verified against the CMS Medicare Coverage Database · Reviewed September 2026
Before any equipment-specific criteria apply, Medicare DME claims have to clear the same baseline: a complete Standard Written Order, a documented face-to-face encounter (required for items on CMS's face-to-face list — which includes every category in these guides), and a clinical record that supports medical necessity. Most denials aren't exotic — they're one of these basics missing or dated wrong.
This is the exact baseline checklist AffirmDME evaluates on every case, drawn from 42 CFR 410.38(d) and CMS's prior-authorization documentation guidance.
The requirements, with citations
Every item below is a check AffirmDME runs automatically — this list mirrors the production rules engine, not a paraphrase of the regulations.
Standard Written Order (SWO) on file
A complete written order must exist before the claim is submitted — patient name, item description, quantity, ordering practitioner, and signature.
42 CFR 410.38(d)Order date and practitioner signature
The SWO must be dated and signed by the treating practitioner. Undated or unsigned orders are treated as no order at all.
42 CFR 410.38(d)Practitioner NPI on the order
The ordering practitioner's NPI must appear on the order and match PECOS enrollment.
42 CFR 410.38(d)Face-to-face encounter documented
Chart notes must document an in-person (or permitted telehealth) encounter where the practitioner evaluated the patient for the item.
42 CFR 410.38(d)(2)Face-to-face within 6 months of the order
The qualifying encounter must have occurred within the 6 months before the order date.
42 CFR 410.38(d)(2)Medical necessity in the clinical record
The medical record — not just the order — must support why the item is medically necessary for this patient.
CMS PA Documentation ChecklistLength of need documented for rental items
Since the 2020 SWO rule, length of need is no longer a required element of the order itself — but the DME MAC PA portals ask for it, and the record must support the expected duration of use. AffirmDME requires an estimated length of need (1–99 months; 99 = lifetime) on every capped-rental item so the packet never stalls on it.
42 CFR 410.38(d) — SWO elements (2020 rule); DME MAC PA request fieldsPatient demographics complete
Patient sex and a complete mailing address are required on the PA request / claim (CMS-1500 fields 3 and 5).
CMS-1500 fields 3 & 5Prior UTN on resubmissions and appeals
Resubmitting or appealing? The prior Unique Tracking Number must accompany the request so the MAC can link it to the original decision.
MAC PA portal — resubmission trackingWhat usually sinks these claims
- The order exists but is missing one required element (usually the signature date or the practitioner's NPI)
- The face-to-face encounter happened — but more than 6 months before the order date
- Chart notes describe the visit but never connect the diagnosis to the equipment being ordered
- A rental item has no length of need on the order
Stop checking this list by hand.
Upload your documentation and AffirmDME verifies every requirement above — with the citation — before you submit. Free to explore in sandbox mode, no credit card.
Check a case freeFAQ
What is a Standard Written Order (SWO)?
The written order 42 CFR 410.38(d) requires for DMEPOS items: patient name, item description, quantity, the ordering practitioner's name and NPI, order date, and the practitioner's signature. Since 2020 it replaced the older detailed written order formats.
Does every DME item need prior authorization?
No. Only items on CMS's Required Prior Authorization List (mainly power mobility devices and certain other items) need a PA decision before delivery. Everything else is still reviewed against the same documentation requirements — just after submission, via prepayment review or ADRs.
What happens if documentation is missing?
The claim is denied or an ADR letter is issued asking you to produce the records. Reworking a single denial costs suppliers roughly $118 on industry estimates — catching the gap before submission is far cheaper.
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This guide summarizes Medicare requirements as implemented in AffirmDME's compliance engine, with citations to the governing sources. It is not legal or billing advice; LCDs and CMS policy change — always confirm against the current policy text linked above.
More guides
- Medicare ADR Letters: how to respond without losing the claim
- Medicare CPAP Documentation Requirements (E0601)
- Medicare Home Oxygen Documentation Requirements (E1390)
- Medicare BiPAP / RAD Documentation Requirements (E0470)
- Medicare Hospital Bed Documentation Requirements (E0260)
- Medicare Wheelchair & Power Mobility Prior Authorization (E1161)
- Medicare Knee Orthosis Documentation Requirements (L1833, L1832)
- Medicare TLSO Documentation Requirements (L0456, L0457, L0486)
- Medicare Air-Fluidized Bed Documentation Requirements (E0194)
- Medicare Ultralightweight Manual Wheelchair Requirements (K0005)
- Medicare Upper Limb Orthosis Requirements (L3761, L3916)
- Medicare Osteogenesis Stimulator Documentation Requirements (E0747, E0748)
- The Medicare DMEPOS Required Prior Authorization List, explained (2026)
- Probationary Prior Authorization for newly enrolled DMEPOS suppliers (Oct 15, 2026)
- The DMEPOS prior authorization exemption: how it works and how to keep it
- Which DME MAC handles your claim: Jurisdictions A, B, C, and D
- Standard Written Order (SWO) requirements for Medicare DME
- Medicare DME face-to-face encounter requirements
- Prior authorization vs ADR vs prepayment review vs TPE: what each means for a DME claim
- After a non-affirmed prior authorization: resubmit, deliver with an ABN, or wait
- Medicare DME proof of delivery requirements
- Preparing and submitting a DMEPOS prior authorization request
Unfamiliar term? The glossary defines ADR, SWO, UTN, PTAN and the rest; the PA List lookup checks any HCPCS code.