CDIP Coding and Reimbursement 2

Question 1

Which MS-DRG grouping methodology assigns patients to categories based on their principal diagnosis, procedures, and comorbidities?

Accepted Answer

MS-DRG

Answer

MS-DRGs (Medicare Severity Diagnosis Related Groups) group inpatient hospital stays using principal diagnosis, procedures performed, sex, discharge status, and presence of MCC/CC.

Question 2

A patient is admitted with acute respiratory failure as the principal diagnosis, with pneumonia documented as the underlying cause. How should these conditions be sequenced?

Accepted Answer

Acute respiratory failure as principal, pneumonia as secondary

Answer

Per UHDDS guidelines, the condition that after study is chiefly responsible for the admission is sequenced as principal; acute respiratory failure meets admission criteria when it drives the workup and treatment.

Question 3

What is the purpose of the Medicare Code Editor (MCE) in the claims adjudication process?

Accepted Answer

It detects errors and inconsistencies in coded claims before payment

Answer

The MCE is a software program that detects errors and inconsistencies in ICD-10-CM/PCS coded inpatient claims, flagging issues such as invalid codes, age/sex conflicts, and non-covered procedures.

Question 4

Under the IPPS, what is the impact of a major complication or comorbidity (MCC) compared to no MCC/CC on DRG assignment?

Accepted Answer

MCC typically results in a higher-weighted DRG, increasing reimbursement

Answer

The presence of an MCC on an inpatient claim typically maps the case to a higher-severity MS-DRG with a greater relative weight, resulting in higher reimbursement.

Question 5

A coder queries the physician about a condition described as 'possible CHF' in the discharge summary. Under inpatient coding guidelines, how should this be coded?

Accepted Answer

Code CHF as if confirmed, per inpatient uncertain diagnosis guidelines

Answer

UHDDS inpatient guidelines allow coding of uncertain diagnoses documented as 'possible,' 'probable,' or 'suspected' at the time of discharge as if confirmed.

(CDIP) Certified Documentation Improvement Practitioner Practice Test

(CDIP) Certified Documentation Improvement Practitioner Practice Test

CDIP Coding and Reimbursement 2