CDIP-Fundamental Exam Questions and
Answers with Verified Solutions | Latest
Updated 2026
Principal Diagnosis (PDx) Condition established after study to be
chiefly
responsible for the admission.
UHDDS PDx Rule Select the condition that drove the
admission and
required inpatient care.
Secondary Diagnosis Conditions that coexist at admission or
develop
during the stay and affect care.
MCC Definition Major Complication/Comorbidity that
significantly
increases resource use and DRG weight.
CC Definition Complication/Comorbidity that moderately
increases resource use and DRG weight.
MCC/CC Logic Secondary diagnoses that impact
SOI/ROM and
DRG assignment when clinically
supported.
, SOI (Severity of Illness) Extent of physiologic decompensation or
organ
system loss of function.
ROM (Risk of Mortality) Likelihood of dying; influenced by
comorbidities
and complications.
POA Indicator Y Condition present at the time of inpatient
admission.
POA Indicator N Condition not present at the time of
admission.
POA Indicator U Documentation insufficient to determine if
present
on admission.
POA Indicator W Clinically undetermined; provider cannot
determine if present on admission.
POA Indicator 1 Diagnosis exempt from POA reporting.
Clinical Validation Ensures the documented diagnosis is
supported by
clinical indicators and treatment.
Coding Validation Ensures documentation supports the code
assignment based on coding rules.
Answers with Verified Solutions | Latest
Updated 2026
Principal Diagnosis (PDx) Condition established after study to be
chiefly
responsible for the admission.
UHDDS PDx Rule Select the condition that drove the
admission and
required inpatient care.
Secondary Diagnosis Conditions that coexist at admission or
develop
during the stay and affect care.
MCC Definition Major Complication/Comorbidity that
significantly
increases resource use and DRG weight.
CC Definition Complication/Comorbidity that moderately
increases resource use and DRG weight.
MCC/CC Logic Secondary diagnoses that impact
SOI/ROM and
DRG assignment when clinically
supported.
, SOI (Severity of Illness) Extent of physiologic decompensation or
organ
system loss of function.
ROM (Risk of Mortality) Likelihood of dying; influenced by
comorbidities
and complications.
POA Indicator Y Condition present at the time of inpatient
admission.
POA Indicator N Condition not present at the time of
admission.
POA Indicator U Documentation insufficient to determine if
present
on admission.
POA Indicator W Clinically undetermined; provider cannot
determine if present on admission.
POA Indicator 1 Diagnosis exempt from POA reporting.
Clinical Validation Ensures the documented diagnosis is
supported by
clinical indicators and treatment.
Coding Validation Ensures documentation supports the code
assignment based on coding rules.
