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46 terms

ICD-9 Coding-Definitions

Handout on 2/11/2010. ICD 9 coding definitions.
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classification
grouping together of similar items
coding
classifying data and assigning a representation for
purpose of coding
confidentiality, communicate differently, statistics
ICD-9
international classification of diseases 9th revision, clinical modification
volume I
tabular list of diseases
volume I subdivisions
classification of diseases and injuries, supplementary classifications(V & E codes), appendices
V codes
used to diagnose when there is no problem or condition (the letter v followed by a 2 numeric digits)
E codes
used to diagnose the environment of injury (the letter e followed by 3 numeric digits, a decimal, and a fourth digit
volume I chapters
17 chapters that classify conditions according to etiology or by specific anatomical system)
etiology
cause or reason for
morphology
the tissue or body system or organ involved where cancer is prevelant
volume I structure
sections, categories, subcategories
5th digit classifications
provide even greater specificity
residual subcategories
these are codes with titles "other" and "unspecified"
supplementary classifications are
v & e codes
volume II
alphabetical index of diseases
volume II sections
index to diseases and injuries, table of drugs and chemicals, alphabetic index to external causes of injury and poisoning
volume II index
includes terminology for all codes, 3 levels of index include main term, sub-term, carryover lines
nonessential modifiers
series of terms in parenthesis that sometimes directly follow main terms as well as subterms. the presemce or absence of terms in the diagnosis has no effect on the selection of the code listed for that main term or subterm
volume III
tabular listing and alphabetical index of procedures
conventions
cross reference terms that are directions to look elsewhere before assigning a code
eponym
name of something named after the person who discovered it, etc.
instructional notations
clarify information or provide additional information
nomenclature
systematic listing of proper names
notes
instruction to assign a 5th digit, additional coding instructions, define terms, appear in all 3 volumes
how many index tables ate there in the alphabetical index
two
what are the 2 tables in the alphabetic index
hypertension & neoplasm
how do notes appear in the alphabetic list
boxed, set italic type
how do how do notes appear in the tabular list
located various levels and are not boxed
what is multiple coding
situation where more than one code is needed to describe the condition
what are two types of multiple coding
mandatory and indiscriminate
in mandatory coding, what are multiple codes used for
one code describes the underlying condition, the other identifies the manifestations
in alphabetic index where is the second code listed for mandatory coding
in brackets
indiscriminate multiple coding
irrelevant medical information such as signs and symptoms
if additional code appears at beginning of a chapter
it affects entire chapter
connecting words
sub-terms that indicate a relation ship between the main terms and an associated condition or etiology in alphabetic index
NEC
abbreviation for not elsewhere classified
NOS
abbreviation for not otherwise specified
sechon mark (this term is incorrectly listed, it should read section mark)
indicates presence of footnotes that lead to a fifth digit
lozenge
used for research purposes only(used mostly in the US it is disregarded by the coder as being irrelevant)
parenthesis
enclose supplementary words or explanatory information that may or may not be present in the statement of a diagnosis or procedure
square brackets
used to enclose synonyms. alternative wording, abbreviations and explanatory phrases
slanted brackets
found only on alphabetic index, enclose a code number one or more modifiers in order to assign a given category or code
colon
used in tabular list after an incomplete term that needs one or more modifiers in order to assign a given category or code
brace
simplifies tabular list entries and saves printing space by reducing repetitive wording
manifestation
resulting condition