MDC
Query Knowledge
OCG/Coding
Clinical Concepts
CDI Wildcard
100

This MDC includes OR Procedures such as CABG and cardiac valve procedures

What is MDC 5?

100

This standard guides compliant documentation query practices across the U.S.

What are ACDIS/AHIMA Query Practice Guidelines?

100

This term refers to an undesired condition that occurs as a direct result of a procedure.

What is a postoperative complication?

100

This term describes weight loss and muscle wasting related to chronic disease like cancer or CHF.

What is cachexia?

100

The team responsible for improving documentation accuracy and supporting quality outcomes.

What is CDI?

200

This MDC covers diagnoses like pneumonia, COPD, and respiratory failure

What is MDC 4?

200

This type of query is utilized to seek clarification when it appears a documented diagnosis is not clinically supported or is conflicting with the medical record documentation

What is clinical validation query?

200

The OCG are updated at this frequency.

What is annually (Oct 1)?

200

This condition is characterized by elevated LFTS with coagulopathy and hepatic encephalopathy

What is acute liver failure? 

200

This classification system divides inpatient hospital cases into these 25 categories based on body system or etiology.

What are Major Diagnostic Categories (MDCs)?

300

A patient with acute stroke and hemiplegia would be assigned to this MDC

What is MDC 1?

300

This type of query is acceptable when clinical indicators support more than one possible diagnosis.

What is a multiple-choice query?

300

This coding rule applies when two codes are needed to fully describe a condition involving a manifestation.

What is etiology/manifestation coding?

300

This condition is suggested by thrombocytopenia, elevated D-dimer, prolonged PT/INR, and low fibrinogen in the setting of severe illness such as sepsis or trauma.

What is disseminated intravascular coagulation (DIC)?

300

This is a numeric value that represents the average severity of illness and resource intensity of a hospital’s patient population, based on the MS-DRG weights assigned to discharged cases. 

What is Case Mix Index (CMI)?

400

A liver transplant would fall under this MDC

What is MDC 7?

400

A query is considered this when it is sent to the same or multiple providers until a desired response is received

What is non-compliant?

400

Section II of the OCG covers this.

What is selection of the principal diagnosis?

400

This condition represents total dependence for mobility and ADLs due to severe cognitive or physical decline rather than neurologic paralysis and is often seen in advanced dementia, severe debility, or end-stage disease.

What is functional quadriplegia?

400

This RMG is utilized for an adult patient with PDX I71012 Dissection of descending thoracic aorta, in MS DRG 299 - Peripheral Vascular Disorders with MCC

What is RMG 1001 Adult: Aortic Aneurysm?

500

This MDC contains the highest-weighted MSDRGs overall due to the cost of its surgeries.

What is MDC 5?

500

Documentation of these support a diagnosis as reportable and/or establishes the presence of a condition

What are clinical indicators?

500

These three conditions must be met for a complication to be coded.

What are cause and effect, clinical significance, and provider documentation?

500

This is a nerve disorder that can develop in people who are critically ill, especially those who've been in the ICU, that have with generalized weakness, decreased sensation (numbness/tingling), and possible difficulty weaning from the ventilator

What is critical illness polyneuropathy?

500

This quality metric bundle includes PSI 03, PSI 13, and PSI 14.

What is PSI 90?