Medical Insurance - Mc Graw Hill Ch4

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ICD-9-CM

International Classification of Diseases, Ninth Revision, Clinical Modification

addenda

official updates to ICD-9-CM published continuously since 1986, that become effective on October 1st of each year.

Tabular List

the section of the ICD-9-CM in which diagnosis codes are presented in numerical order

Alphabetic Index

The section of the ICD-9-CM in which diseases and injuries with corresponding diagnosis codes are presented in alphabetical order.

diagnostic statement

a physician's description of the main reason for a patients encounter; may also describe related conditions or symptoms.

main term

The word in bold-faced type that identifies a disease or condition in the Alphabetic index in ICD-9-CM

subterm

A word or phrase that describes a main term in the Alphabetic Index of the ICD-9-CM.

etiology

The cause or origin of a disease.

supplementary term

A nonessential word or phrase that helps to define a code in the ICD-9-CM; usually enclosed in parentheses or brackets.

category

three-digit code for classifying a disease or injury

subcategory

four-digit code number.

subclassification

five-digit code number

NOS (not otherwise specified)

indicating the code to be used when no information is available for assigning the illness or condition a more specific code.

unspecified

an incompletely described condition that must be coded with an unspecified ICD code.

V code

an alphanumeric code in the ICD-9-CM that identifies factors that influence health status and encounters that are not due to illness or injury.

E code

An alphanumeric ICD code for an external cause of injury or poisoning.

adverse effect

an undesired and potentially harmful effect occuring at normal therapeutic dosing levels

Table of Drugs and Chemicals

reference listing of drugs and chemicals in the ICD-9-CM Alphabetic Index.

chief complaint (CC)

A patient's description of the symptoms or other reasons for seeking medical care for a provider encounter.

primary diagnosis

a diagnosis that represents the patient's major illness or condition for an encounter

coexisting condition

Additional illness that either has an effect on the patient's primary illness or is also treated during the encounter.

ICD-9-CM Official Guidelines for coding and Reporting

American Hospital Association publication that provides rules for selecting and sequencing diagnosis codes correctly in both the impatient and outpatient environments.

acute

illness or condition featuring severe symptoms and a short duration

chronic

illness or condition with a long duration

late effect

condition that remains after and acute illness or injury has completed it's course.

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