Medicare Claims Processing Manual (Pub. 100-04), Ch. 32 § 11.2
Electromagnetic Therapy
11.2 - Electromagnetic Therapy
(Rev. 2998, Issued: 07-25-14, Effective: Upon implementation of ICD-10; 01-01-12 - ASC X12, Implementation:
08-25-2014 - ASC X12; Upon Implementation of ICD-10)
A. HCPCS Coding Applicable to A/B MACs (A and B)
Effective July 1, 2004, a National Coverage Decision was made to allow for Medicare coverage of electromagnetic
therapy for the treatment of certain types of wounds. The type of wounds covered are chronic Stage III or Stage IV
pressure ulcers, arterial ulcers, diabetic ulcers and venous stasis ulcers. All other uses of electromagnetic therapy for
the treatment of wounds are not covered by Medicare. Electromagnetic therapy will not be covered as an initial
treatment modality.
The use of electromagnetic therapy will only be covered after appropriate standard wound care has been tried for at
least 30 days and there are no measurable signs of healing. If electromagnetic therapy is being used, wounds must be
evaluated periodically by the treating physician but no less than every 30 days. Continued treatment with
electromagnetic therapy is not covered if measurable signs of healing have not been demonstrated within any 30-day
period of treatment. Additionally, electromagnetic therapy must be discontinued when the wound demonstrates a
100% epithelialzed wound bed.
Coverage policy can be found in Pub. 100-03, Medicare National Coverage Determinations Manual, Chapter 1 section
270.1. (http://www.cms.hhs.gov/manuals/103_cov_determ/ncd103index.asp)
The applicable Healthcare Common Procedure Coding System (HCPCS) code for Electrical Stimulation and the
covered effective date is as follows:
HCPCS
Definition
Effective Date
G0329
ElectromagneticTherapy, to one or more
areas for chronic Stage III and Stage IV
pressure ulcers, arterial ulcers, diabetic
ulcers and venous stasis ulcers not
demonstrating measurable signs of healing
after 30 days of conventional care as part
of a therapy plan of care.
07/01/2004
Medicare will not cover the device used for the electromagnetic therapy for the treatment of wounds. However,
Medicare will cover the service. Unsupervised home use of electromagnetic therapy will not be covered.
B. A/B MAC (A) Billing Instructions
The applicable types of bills acceptable when billing for electromagnetic therapy services are 12X, 13X, 22X, 23X,
71X, 73X, 74X, 75X, and 85X. Chapter 25 of this manual provides general billing instructions that must be followed
for bills submitted to A/B MACs (A). A/B MACs (A) pay for electromagnetic therapy services under the Medicare
Physician Fee Schedule for a hospital, CORF, ORF, and SNF.
Payment methodology for independent (RHC), provider-based RHCs, free-standing FQHC and provider based
FQHCs is made under the all-inclusive rate for the visit furnished to the RHC/FQHC patient to obtain the therapy
service. Only one payment will be made for the visit furnished to the RHC/FQHC patient to obtain the therapy
service. As of April 1, 2005, RHCs/FQHCs are no longer required to report HCPCS codes when billing for the
therapy service.
Payment Methodology for a CAH is payment on a reasonable cost basis unless the CAH has elected the Optional
Method and then the A/B MAC (A) pays pay 115% of the MPFS amount for the professional component of the
HCPCS code in addition to the technical component.
In addition, the following revenues code must be used in conjunction with the HCPCS code identified:
Revenue Code
Description
420
Physical Therapy
430
Occupational Therapy
520
Federal Qualified Health Center *
521
Rural Health Center *
977, 978
Critical Access Hospital- method II
CAH professional services only
* NOTE: As of April 1, 2005, RHCs/FQHCs are no longer required to report HCPCS codes when billing for the
therapy service.
C. A/B MAC (B) Claims
A/B MACs (B) pay for Electromagnetic Therapy services billed with HCPCS codes G0329 based on the MPFS.
Claims for electromagnetic therapy services must be billed using the ASC X12 837 professional claim format or Form
CMS-1500 following instructions in chapter 12 of this manual
(www.cms.hhs.gov/manuals/104_claims/clm104index.asp).
Payment information for HCPCS code G0329 will be added to the July 2004 update of the Medicare Physician Fee
Schedule Database (MPFSD).
D. Coinsurance and Deductible
The Medicare contractor shall apply coinsurance and deductible to payments for electromagnetic therapy services
except for services billed to the A/B MAC (A) by FQHCs. For FQHCs only co-insurance applies.