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ICD-9 CONVENTIONS & SYMBOLS
symbols, abbreviations, punctuation, and notations
is a cross reference that directs the coder to volume 1 for important information
follow terms, to define and give instructions
a cross reference and gives explicit direction to look elsewhere
are terms in parenthesis that are nonessential, but they define terms or give coding instructions
are indented under the main term and are essential to code selection
Directs coder to look under another main term since all information is not under the first term
Disease or syndrome named for a person
"E" codes are located where
Volume 2 section 3
bold type is used for all codes and titles in the Tabular list in Volume 1
are used for all exclusion notes and to identify those codes that are not usually sequenced as the first listed diagnosis.
used to enclose synonyms, alternative terminology. or explanatory phrases found in the tabular list
Used to enclose supplementary words that may be present or absent in the description of a disease or procedure
Used in the tabular listing after an incomplete term that needs a modifier to make it assignable to a given category
Encloses a series of terms, each of which is modified by the statement appearing to the right of the brace
non essential modifiers
are enclosed in parentheses and are words that may be used to clarify the diagnosis but do not affect the code
are not enclosed in parentheses and are SUBTERMS that DO affect the selection of appropriate code
cross references directing to Volume 1 tabular list for important info.
not elsewhere classifiable- use when the information specifies a condition but there is no specific code for that condition.
not otherwise specified- is used when the information given does not permit a more specific code assignment (unspecified)
used to enclose the manifestation of the underlying condition
in tabular list volume 1 and they further define or provide examples and may appy to the chapter, section or category
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