CMS Pub. 100-04, ch. 6, § 30

SNFs and hospital swing bed providers are required to report inpatient Part A PPS billing

data as follows. Refer to the Medicare Claims Processing Manual, Chapter 25,

“Completing and Processing the Form CMS-1450 Data Set,” for a description of claim

data elements.

• In addition to the required fields identified in Chapter 25, SNFs must also report

occurrence span code “70” to indicate the dates of a qualifying hospital stay of at

least three consecutive days which qualifies the beneficiary for SNF services.

• Separate bills are required for each Federal fiscal year for admissions that span

the annual update effective date (October 1).

• Use Type of Bill 21X for SNF inpatient services or 18X for hospital swing bed

services.

• Revenue Code 0022. This code indicates that this claim is being paid under the

SNF PPS. This revenue code can appear on a claim as often as necessary to

indicate different HIPPS Rate Code(s) and assessment periods.

• Effective for claims with dates of service on or after January, 1 2011, there must

be an occurrence code 50 (assessment date) for each assessment period

represented on the claim with revenue code 0022. The date of service reported

with occurrence code 50 must contain the ARD. An occurrence code 50 is not

required with default HIPPS code AAAxx (where ‘xx’ equals varying digits) or

ZZZZZ October 1, 2019 and after. In addition, for OMRA related AIs 05, 06, 0A,

0B, 0C, 12, 13, 14, 15, 16, 17, 1A, 1B, 1C, 24, 25, 26, 2A, 2B, 2C, 34, 35, 36, 3A,

3B, 3C, 44, 45, 46, 4A, 4B, 4C, 54, 55, 56, 5A, 5B, 5C where 2 HIPPS may be

produced by one assessment, providers need only report one occurrence code 50

to cover both HIPPS codes. As of October 1, 2019, SNF PDPM changes are

effective (see §§120ff.).

• HCPCS/Rates field must contain a 5-digit “HIPPS Code”. The first three

positions of the code contain the RUG group and the last two positions of the

code contain a 2-digit assessment indicator (AI) code. See Chapter 6 of the MDS

RAI manual for valid RUG codes and AI codes. As of October 1, 2019, SNF

PDPM changes are effective (see §§120ff.).

• SNF and SB PPS providers must bill the HIPPS codes on the claim form in the

order in which the beneficiary received that level of care.

• Service Units must contain the number of covered days for each HIPPS rate code.

NOTE: Fiscal Intermediary Shared System (FISS) requirement:

The sum of all covered units reported on all revenue code 0022 lines

should be equal to the covered days field less the number of days

reported in an OSC 77. (NOTE: The covered units field is utilized in

FISS and has no mapping to the 837 or paper claim).

• Total Charges should be zero for revenue code 0022.

• When a HIPPS rate code of RUAxx, RUBxx, RUCxx, RULxx and/or RUXxx is

present, a minimum of two rehabilitation therapy ancillary codes are required

(revenue code 042x and/or, 043x and/or, 044x). When a HIPPS rate code of

RHAxx, RHBxx, RHCxx, RHLxx, RHXxx, RLAxx, RLBxx, RLXxx, RMAxx,

RMBxx, RMCxx, RMLxx, RMXxx, RVAxx, RVBxx, RVCxx, RVLxx, and/or

RVXxx is present, a minimum of one rehabilitation therapy ancillary revenue

code is required (revenue code 042x, 043x, or 044x. Bills that are missing

required rehabilitation therapy ancillary revenue codes are to be returned to the

SNF for resubmission. As of October 1, 2019, SNF PDPM changes are effective

(see §§120ff.).

• The accommodation revenue code 018x, leave of absence is reported when the

beneficiary is on a leave of absence and is not present at the midnight census

taking time.

• Principal Diagnosis Code - SNFs enter the ICD-CM code for the principal

diagnosis in the appropriate form locator. The code must be reported according to

Official ICD-CM Guidelines for Coding and Reporting, as required by the Health

Insurance Portability and Accountability Act (HIPAA), including any applicable

guidelines regarding the use of V codes for ICD-9. The code must be the full

ICD-CM diagnosis code, including all five digits (for ICD-9) or all seven digits

(for ICD-10) where applicable.

• Other Diagnosis Codes Required - The SNF enters the full ICD-CM codes

for up to eight additional conditions in the appropriate form locator.

Medicare does not have any additional requirements regarding the

reporting or sequence of the codes beyond those contained in the ICD-CM

guidelines.