Cclass ICD 9 CM

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Hypertension table

A list of conditions that are due to or associated with hypertension.the conditions are classified as malignant, benign, or unspecified

Neoplasm table

Is located in the index and is organized by anatomic site. Each site has 6 columns with 6 possible codes the right code depends on whether you are dealing with primary malignancy, secondary malignancy, carcinoma (CA) in situ, benign, uncertain behavior, or unspecified nature.

nonessential modifiers

Terms in parenthesis thats presence or absence has no effect on the code.

essential modifiers

Subterms, terms indented two spaces to the right below the main term.Their presence has a bearing on the right code so they are?

Chapters

the main divisions in the ICD-9CM. In the tabular list ( volume 1 ) there are 17 and they are based on either body system or cause or type of disease.

Sections

Composed of a group of three-digit categories representing a group of conditions or related conditions.

Categories

Composed of three-digit codes representing a single disease or condition. The three-digit code is used only if it is not further subdivided. There are about a 100 of these codes.

subcategories

Provide a 4 digit code ( one after the decimal point ) which is more specific then a category code in terms of cause, site, or manifestation of the condition. This must be used if available.

subclassification

Provides a five digit code which gives the highest specificity of description to a condition. Use of it is mandatory if it is available.

ICD 9 CM

International Classification of Diseases, 9th Revision, Clinical Modification

Volume 1

Disease: Tabular list. Contains the disease and condition codes and the descriptions also contains the V codes and E codes

Volume 2

Diseases: Alphabetic Index. This is the alphabetic index of volume 1 and contains table of drugs and chemicals and index of external causes of injury ( E codes )

Volume 3

Procedures: Tabular list and Alphabetic index. Contains codes for surgical, therapeutic, and diagnostic procedures; used primarily by hospitals.

V codes

Supplementary classification of factors influencing health status and contact with health services.

E codes

Supplementary classification of external cause of injury and poisoning.

ICD update

This happens every year usually in october.

NEC

Used in both volume 1 and 2.To be used only when the information at hand specifies a condition but there is no specific separate code for that condition in the coding manual.

NOS

Used in volume 1 the tabular list and is equivalent of unspecified.

Brackets

Used to enclose synonyms, alternative wording, or explanatory phrase. Found in the tabular list and the index.

colon

Used in the tabular list after an incomplete term that needs one or more of the modifiers that follow in order to make it assignable to a given category.

Brace

Used to enclose a series of terms, each of which is modified by the statement appearing at the right of the.

lozenge

This symbol is printed in the left margin preceding the disease code to denote a four digit number unique to the ICD -9- CM manual.Only found in volume 1 the tabular list.

section mark

Indicates the footnote is located at the bottom of the page. Found in the tabular list.

bold type

Used for all codes and titles in the tabular list in volume 1.

slanted brackets

Used to close the manifestation of the underlying condition. When a code is listed inside the ? , you must sequence that code after the underlying condition code.

Italicized type

Used for all exclusion notes and to identify those codes that are not usually sequenced as the first-listed diagnosis. These types of codes cannot be assigned as a principal diagnosis because they always follow another code.

Includes

Notes found in the tabular list they further define or provide examples can apply to the chapter, section or category.

Excludes

notes that appear in the tabular list volume 1 and indicate terms that are to be code elsewhere. These can be located in the beginning of a chapter or section or below a category and can be used for three reasons. 1 The condition may have to be coded elsewhere. 2 The code cannot be assigned if the associated condition is present. 3 Additional codes may be required to fully explain the condition.

additional codes

To provide a more complete picture of the diagnosis or procedure. The use of an _ _ is mandatory if supporting physician documentation is found in the record.

code, if applicable, any causal condition

A code with this note may be the principal diagnosis if no causal condition is applicable or known.

code first underlying disease

The phrase "_ _ _ _" is used in the categories in the tabular list, volume 1 and is not intended to indicate the principal diagnosis. In such cases, the code, title, and instructions appear in italics. The note requires that the underlying disease (etiology) be sequenced first.

see

The _ cross reference is an explicit direction to look elsewhere.

see also

The _ _ cross reference directs you to look under another main term if all the information being searched for cannot be located under the first main term entry.

see category

The _ _ cross reference directs you to volume 1, tabular list for important information governing the use of the specific code.

notes

Certain main terms are followed by _ that are used to define terms and give coding instructions.

and

means and/or

with

Indicates that two conditions are included in the code and both conditions must be present.

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