US · guidance
CMS Pub. 100-04, ch. 21, § 10.3.8
Specifications for Section 4 (Last Page): Denials and Appeals
This section of the MSN helps beneficiaries understand how to handle
denied claims; it also explains how and when to file an appeal. This section
should be printed in its entirety on exactly one page, and it should always
appear on the MSN’s final page. It can appear on either the front or reverse
of a sheet.
A. Section Title
POSITION
This subsection contains information of a fixed size. It does not vary in
overall width or length.
The content area begins (0˝, 5˝), 7 points from the baseline of Headers of
Other Pages subsection. It is full-page or 540 points in width and 24 points in
height.
FORMATTING
[GR 2.1] black rule
[TH 2] section header
DYNAMIC RULES
N/A - this section is static
CONTENT
How to Handle Denied Claims or File an Appeal
B. Get More Details
GLOBAL SPECIFICATIONS
POSITION
This subsection contains information of a fixed size. It does not vary in
overall width or length.
The content area begins (0˝, 0.94˝) or 28 points from the baseline of the
Section Title subsection. It is one-column or 259 points in width and 167
points in height.
FORMATTING
[GR 2.1] black rule
[TH 3] subsection header
[GR 4.1] space after header
[TB 1.2] highlight first sentence [TB 1.1] body text
[GR 6] space between paragraph
[TB 1.1] body text
DYNAMIC RULES
N/A - this section is static
PART A INPATIENT AND ‘B OF A’ SPECIFICATIONS
CONTENT
Get More Details
If a claim was denied, call or write the hospital or facility and ask
for an itemized statement for any claim. Make sure they sent in the
right information. If they didn’t, ask the facility to contact our claims
office to correct the error. You can ask the facility for an itemized
statement for any service or claim.
Call 1-800-MEDICARE (1-800-633-4227) for more information about a
coverage or payment decision on this notice, including laws or policies
used to make the decision.
PART B (ASSIGNED AND UNASSIGNED), HOSPICE, AND HOME
HEALTH
SPECIFICATIONS
CONTENT
Get More Details
If a claim was denied, call or write the provider and ask for an
itemized statement for any claim. Make sure they sent in the right
information. If they didn’t, ask the provider to contact our claims office
to correct the error. You can ask the provider for an itemized statement
for any service or claim.
Call 1-800-MEDICARE (1-800-633-4227) for more information about a
coverage or payment decision on this notice, including laws or policies
used to make the decision.
DME (ASSIGNED AND UNASSIGNED) SPECIFICATIONS
CONTENT
Get More Details
If a claim was denied, call or write the supplier and ask for an
itemized statement for any claim. Make sure they sent in the right
information. If they did not, ask the supplier to contact our claims office
to correct the error. You can ask the supplier for an itemized statement
for any item or claim.
Call 1-800-MEDICARE (1-800-633-4227) for more information about a
coverage or payment decision on this notice, including laws or policies
used to make the decision.
C. If You Disagree
POSITION
The position of this subsection is dynamic. The content area begins 19
points from the baseline of the Get More Details subsection. It is one-column or 259 points in width and 132 points in height. The last line has a
black rule around the appeal due date. The date field is 158 points wide.
Formatting
[GR 2.1] black rule
[TH 3] subsection header
[GR 4.1] space after header
[TB 1.2] highlight first sentence [TB 1.1] body text
[GR 6] space between paragraph
[TB 1.1] body text
[TB 1.2] appeals due date, center aligned [GR 2.2] highlight edges of
Column 2
DYNAMIC RULES
This subsection contains a dynamically generated date: the beneficiary’s
appeal deadline. The date printed should be 125 days from the notice date in
the Notice Details subsection of Part 1. The date is listed with a spelled-out
month, numeric day, and complete numeric year (e.g., October 15, 2021).
CONTENT
If You Disagree with a Coverage Decision, Payment Decision, or
Payment Amount on this Notice, You Can Appeal
Appeals must be filed in writing. Use the form to the right. Our
claims office must receive your appeal within 120 days from the date
you get this notice.
We must receive your appeal by:
{Month DD, YYYY}
D. If You Need Help Filing Your Appeal
GLOBAL SPECIFICATIONS
POSITION
The position of this subsection is dynamic. The content area begins 19
points from the baseline of the If You Disagree subsection. It is one-column
or 259 points in width and 190 points in height.
FORMATTING
[GR 2.1] black rule
[TH 3] subsection header
[GR 4.1] space after header
[TB 1.2] highlight first sentence [TB 1.1] body text
[GR 6] space between paragraph
[TB 1.2] highlight first sentence, [TB 1.1] body text
[GR 6] space between paragraph
[TB 1.2] highlight first sentence [TB 1.1] body text
DYNAMIC RULES
If the mailing address is that of the legal representative, the beneficiary’s
address state should be used to identify the SHIP contact number, not that of
the legal representative.
NOTE: If the mailing address is that of the legal representative and the
beneficiary’s address indicates that the beneficiary lives outside of the 50
U.S. states and U.S. territories, then the final paragraph on page 2 should be
suppressed. See alternate language in the Content specifications below.
When there is a combined MSN that has Part A Inpatient claims with
Hospice and/or Home Health claims, use the content for Part A Inpatient
specification.
PART A INPATIENT AND ‘B OF A’ SPECIFICATIONS
CONTENT
If You Need Help Filing Your Appeal
Contact us: Call 1-800-MEDICARE or your State Health Insurance
Program (see page 2) for help before you file your written appeal,
including help appointing a representative.
Call your facility: Ask your facility for any information that may help
you.
Ask a friend to help: You can appoint someone, such as a family
member or friend, to be your representative in the appeals process.
Or, if the MSN mailing address is outside the 50 states, use the following
language:
If You Need Help Filing Your Appeal
Contact us: Call 1-800-MEDICARE for help before you file your
written appeal, including help appointing a representative.
Call your facility: Ask your facility for any information that may help
you.
Ask a friend to help: You can appoint someone, such as a family
member or friend, to be your representative in the appeals process.
PART B (ASSIGNED AND UNASSIGNED), HOSPICE, AND HOME
HEALTH
SPECIFICATIONS
CONTENT
If You Need Help Filing Your Appeal
Contact us: Call 1-800-MEDICARE or your State Health Insurance
Program (see page 2) for help before you file your written appeal,
including help appointing a representative.
Call your provider: Ask your provider for any information that may
help you.
Ask a friend to help: You can appoint someone, such as a family
member or friend, to be your representative in the appeals process.
Or, if the MSN mailing address is outside the 50 states, use the following
language:
If You Need Help Filing Your Appeal
Contact us: Call 1-800-MEDICARE for help before you file your
written appeal, including help appointing a representative.
Call your facility: Ask your facility for any information that may help
you.
Ask a friend to help: You can appoint someone, such as a family
member or friend, to be your representative in the appeals process.
DME (ASSIGNED AND UNASSIGNED) SPECIFICATIONS
CONTENT
If You Need Help Filing Your Appeal
Contact us: Call 1-800-MEDICARE or your State Health Insurance
Program (see page 2) for help before you file your written appeal,
including help appointing a representative.
Call your supplier: Ask your supplier for any information that may help
you.
Ask a friend to help: You can appoint someone, such as a family
member or friend, to be your representative in the appeals process.
Or, if the MSN mailing address is outside the 50 states, use the following
language:
If You Need Help Filing Your Appeal
Contact us: Call 1-800-MEDICARE for help before you file your
written appeal, including help appointing a representative.
Call your facility: Ask your facility for any information that may help
you.
Ask a friend to help: You can appoint someone, such as a family
member or friend, to be your representative in the appeals process.
E. Find Out More
POSITION
The position of this subsection is dynamic. The content area begins 19
points from the baseline of the If You Need Help Filing Your Appeal
subsection. It is one-column or 259 points in width and 72 points in height.
FORMATTING
[GR 2.1] black rule
[TH 3] subsection header
[GR 4.1] space after header
[TB 1.1] body text
CONTENT
Find Out More About Appeals
For more information about appeals, read your “Medicare & You”
handbook, or visit us online at www.medicare.gov/appeals.
F. File an Appeal in Writing
GLOBAL SPECIFICATIONS
POSITION
This subsection contains information of a fixed size. It does not vary in
overall width or length.
This subsection begins (3.9˝, 0.94˝). This should top align with the Get
More Details subsection in the left column. It is one-column or 259 points
in width and 652 points in height.
Indent in 8 points top and left and 16 points from right to begin content area.
Tab 12 points from left to start appeal instructions and fill-in box.
The beneficiary fill-in box in Step 3 is 218 points in width and 22 points in
height.
The telephone number fields are split further, with 19 points of width for
each number and 7 points of space in between the fields. Any space after the
10 digit fields should be left as gray fill.
Revised figure 10.3.8.F
FORMATTING
[GR 1] gray fill
[TH 3] subsection header
[GR 4.1] space after header
[TB 2.1] body text
[GR 4.1] space after header
[TB 2.2] step 1 [TB 2.1] body text
[GR 4.1] space after header
[TB 2.2] step 2 [TB 2.1] body text
[GR 4.1] space after header
[TB 2.2] step 3 [TB 2.1] body text
[GR 4.1] space after header
[TB 2.1] fill in category
[GR 5] space after text
[GL 7] fill in box
[GR 6] space after text
[TB 2.1] fill in category
[GR 5] space after text
[GL 7] fill in boxes
[GR 4.1] space after header
[TB 2.2] steps 4 - 7 [TB 2.1] body text
[GR 4.1] space after header
[TB 2.2] MAC address
DYNAMIC RULES
In Step 7 of the File an Appeal in Writing subsection, beneficiaries are
instructed where to mail their appeals material. The mailing address listed
should be the preferred mailing address of the MAC generating the MSN.
The address should appear in the following format:
First Line: Medicare Claims Office (static text)
Second Line: c/o { A/B MAC (A), (B), (HHH), or DME MAC
Name} Third Line: { MAC Street Address or PO Box,
Suite Number}
Fourth Line: { MAC City}, {ST} {ZIP+4}
If the MAC uses another name to refer to the ‘Medicare Claims Office,’ add
an additional line after the second line with an ‘attn:’ to refer to the
department. The first line should stay static for all return addresses.
First Line: Medicare Claims Office (static text)
Second Line: c/o {A/B MAC (A), (B), (HHH), or DME MAC Name}
Third Line: attn: {Appeals Department Name}
Fourth Line: {MAC Street Address or PO Box, Suite Number}
Fifth Line: {MAC City}, {ST} {ZIP+4}
When there is a combined MSN that has Part A Inpatient claims with
Hospice and/or Home Health claims, use the content for Part A Inpatient
specification.
PART A INPATIENT AND ‘B OF A’ SPECIFICATIONS
CONTENT
File an Appeal in Writing
1 Circle the service(s) or claim(s) you disagree with on this
notice.
2 Explain in writing why you disagree with the decision.
Include your explanation on this notice or, if you need more space,
attach a separate page to this notice.
3 Fill in all of the following:
Your or your representative’s full name (print)
Your telephone number
Your complete Medicare number
4 Include any other information you have about your appeal.
You can ask your facility for any information that will help you.
5 Write your Medicare number on all documents that you send.
6 Make copies of this notice and all supporting documents for
your records.
7 Mail this notice and all supporting documents to the
following address:
Medicare Claims Office
c/o {A/B MAC (A), (B), (HHH), or DME MAC Name}
{MAC Street Address}
{MAC City}, {ST} {ZIP+4}
PART B (ASSIGNED AND UNASSIGNED), HOSPICE, AND HOME
HEALTH
SPECIFICATIONS
CONTENT
File an Appeal in Writing
1 Circle the service(s) or claim(s) you disagree with on this
notice.
2 Explain in writing why you disagree with the decision.
Include your explanation on this notice or, if you need more space,
attach a separate page to this notice.
3 Fill in all of the following:
Your or your representative’s full name (print)
Your telephone number
Your complete Medicare number
4 Include any other information you have about your appeal.
You can ask your provider for any information that will help you.
5 Write your Medicare number on all documents that you send.
6 Make copies of this notice and all supporting documents for
your records.
7 Mail this notice and all supporting documents to the
following address:
Medicare Claims Office
c/o {A/B MAC (A), (B), (HHH), or DME MAC Name}
{MAC Street Address}
{MAC City}, {ST} {ZIP+4}
DME (ASSIGNED AND UNASSIGNED) SPECIFICATIONS
CONTENT
File an Appeal in Writing
1 Circle the item(s) or claim(s) you disagree with on this notice.
2 Explain in writing why you disagree with the decision.
Include your explanation
on this notice or, if you need more space, attach a separate page to
this notice.
3 Fill in all of the following:
Your or your representative’s full name (print)
Your telephone number
Your complete Medicare number
4 Include any other information you have about your appeal.
You can ask your supplier for any information that will help you.
5 Write your Medicare number on all documents that you send.
6 Make copies of this notice and all supporting documents for
your records.
7 Mail this notice and all supporting documents to the
following address:
Medicare Claims Office
c/o {A/B MAC (A), (B), (HHH), or DME MAC Name}
{MAC Street Address}
{MAC City}, {ST} {ZIP+4}
History
(Rev. 10180, Issued: 06-12-2020, Effective: 10-01-2020, Implementation: 10- 05-2020)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
e67b49dca93d954c932f15864377629419b409e250b1e71b082496d7a8d2500a
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