Chapter 3: Introduction To ICD-10-CM Flashcards
NEC
Not elsewhere classifiable. Means provider documented more specific info about patient’s condition but no code for the specific condition.
NOS
Not otherwise specified. Used only when you lack info to code a more specific diagnosis.
Brackets [ ] - Tabular list
Used in tabular list to enclose synonyms, alternate wordings, or explanatory phrases.
Brackets [ ] - Alphabetical list
Used in alphabetical index to identify manifestation codes where multiple coding and sequencing rules will apply. Code in bracket always follows the code before the bracket
Parentheses ( )
Supplementary words that may or may not be present, without affecting the code to which it is assigned. Non-essential modifiers
Colon :
Used in tabular list after an incomplete term that needs one or more modifier to make it assignable to a given category.
Other codes
(Usually has an 8 or 9 at the end) Used when medical record provides detail for which no code exists. NEC entries point to other codes where this NEC is included
Unspecified
(Usually with a 9 or 0 at the end) Used when the medical record doesn’t allow for more specific codes. Only used where no other option is available.
Includes
Immediately after a 3 code title to define further or give an example of the category.
Excludes1
Type 1 Excludes should not be used at the same time as the code above the Excludes1 when the two diagnosis are related. Includes when two conditions cannot occur together. IE congenital form vs acquired form of the same condition.
Excludes2
A type 2 Excludes notes that a condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. Acceptable to use both codes when both conditions exist.
Use additional code
Additional code(s) should be used after a primary code to provide a more complete picture of the diagnosis.
Code first
Only appears in tabular list. Notes that two codes are needed to report a condition. Requires underlying condition first and the particular manifestation second.
Use additional code, if applicable
A second code to be used in addition to the first code if the condition is met
Eponym
Disease or syndrome named after a person.