Diagnostic coding
ICD-10
General coding guidelines
Assigning a diagnosis code
Sequencing a diagnosis code
100

Diagnosis codes on an insurance claim explain 

the patient's condition that was treated during the visit 

100

In locating a diagnosis, look up the main term, which is the 

disease and injury 

100

Diagnoses that relate to a patient's previous medical problem and that have no bearing on the patient's present condition should be ____ when coding. 

excluded 

100

Codes that are used principally by tumor or cancer registries are 

neoplasm codes

100
The main reason for the encounter and should be listed first on the claim 

Primary diagnosis 

200

The diagnosis listed first in submitting insurance claims for patients seen in a physician's office is the 

primary diagnosis 

200

Terms enclosed in parentheses following the main term are referred to as 

non-essential modifiers 

200

External cause codes are used 

to show cause of injury 

200

A ___ is a late effect or condition produced after the acute phase of an illness 

sequela 

200

Underlying cause of the disease 

etiology 

300

NEC stands for?

"not elsewhere classifiable"

300

What is an eponym?

The name of a disease, structure, operation, or procedure, usually derived from the name of a place or a person who discovered or described it first. 

300

What is the table that contains a classification of substances for identifying poisoning states and external causes of adverse effects?

Table of Drugs and Chemicals 

300

Cancer confined to one site 

Carcinoma in situ 

300

The diagnosis that prompted hospitalization 

principal diagnosis 

400

NOS means?

"not otherwise specified"

400

ICD-10-CM was published by the WHO in 

1992

400

In ICD-10-CM, a code with a fourth digit 9 or fifth digit 0 for diagnosis codes means 

information in the health record is unspecified. 

400

In ICD-10-CM, a placeholder for future code expansion is shown as 

X character 

400

Why is the correct sequence of codes on an insurance claim important?

to make the chronology of patient care events understood and to make the severity of disease understood. 

500

The _________________ is a set of rules developed to accompany and complement the official conventions and instructions provided in the ICD-10-CM coding manual. 

Official Guidelines for Coding and Reporting 

500

The first three characters of an ICD-10-CM code are composed as 

Character 1 (alpha), Character 2 (numeric), Character 3 (numeric)

500

Annual updates to the ICD-10-CM coding system are published in the ___.

federal register 

500

The sixth character of an ICD-10-CM code can signify 

trimester of pregnancy 

500

May contribute to the condition or define the need for a higher level of care but is not the underlying cause 

secondary diagnosis 

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