CDIP DOMAINS 1 TO 4 COMPREHENSIVE
EXAM 2026 QUESTIONS AND SOLUTIONS
FULL PACK
◉ Principal diagnosis. Answer: Diagnosis that, after study, is the
reason for the patient's admission to the hospital.
◉ Secondary diagnoses. Answer: Additional supporting information
for the conditions the patient is being cared for
◉ MCC. Answer: Major Complication or Comorbidity
◉ CC. Answer: Complication or Comorbidity
◉ CMI. Answer: Case Mix Index
◉ LOS. Answer: Length of Stay
◉ Complication. Answer: A condition arising during the hospital
stay that prolongs the LOS by at least one day in approximately 75%
of the cases
, ◉ Comorbidity. Answer: A pre-existing condition which because of
its presence with the principal diagnosis will increase the LOS by at
least one day in 75% of the cases
◉ Primary procedures. Answer: Procedure codes that best represent
the procedure that has been performed
◉ Secondary procedures. Answer: Do not typically impact the MS-
DRG; however, they are important for capturing the details of the
care the patient has received while in the hospital.
◉ Coding conventions for ICD-10-CM. Answer: General rules for the
use of the classification independent of the guidelines
◉ Letter that ICD-10 utilizes as a placeholder for certain codes.
Answer: X
◉ Excludes1. Answer: Indicates that the code excluded should never
be used with the code above the Excludes1 note.
◉ Excludes2. Answer: Indicates that, when appropriate, it is
acceptable to use both the code and the excluded code together.
EXAM 2026 QUESTIONS AND SOLUTIONS
FULL PACK
◉ Principal diagnosis. Answer: Diagnosis that, after study, is the
reason for the patient's admission to the hospital.
◉ Secondary diagnoses. Answer: Additional supporting information
for the conditions the patient is being cared for
◉ MCC. Answer: Major Complication or Comorbidity
◉ CC. Answer: Complication or Comorbidity
◉ CMI. Answer: Case Mix Index
◉ LOS. Answer: Length of Stay
◉ Complication. Answer: A condition arising during the hospital
stay that prolongs the LOS by at least one day in approximately 75%
of the cases
, ◉ Comorbidity. Answer: A pre-existing condition which because of
its presence with the principal diagnosis will increase the LOS by at
least one day in 75% of the cases
◉ Primary procedures. Answer: Procedure codes that best represent
the procedure that has been performed
◉ Secondary procedures. Answer: Do not typically impact the MS-
DRG; however, they are important for capturing the details of the
care the patient has received while in the hospital.
◉ Coding conventions for ICD-10-CM. Answer: General rules for the
use of the classification independent of the guidelines
◉ Letter that ICD-10 utilizes as a placeholder for certain codes.
Answer: X
◉ Excludes1. Answer: Indicates that the code excluded should never
be used with the code above the Excludes1 note.
◉ Excludes2. Answer: Indicates that, when appropriate, it is
acceptable to use both the code and the excluded code together.
