ICD-10-CM Diagnosis Coding Flashcards
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What does the abbreviation ICD-10-CM stand for?
Answer: International Classification of Diseases, 10th Revision, Clinical Modification
ICD-10-CM stands for International Classification of Diseases, 10th Revision, Clinical Modification — the U.S. diagnostic coding system.
What is the maximum number of characters an ICD-10-CM code can have?
Answer: 7
ICD-10-CM codes have a maximum of 7 characters: a 3-character category followed by up to 4 additional alphanumeric characters.
In ICD-10-CM, what type of character always occupies the first position of every code?
Answer: An alpha character representing the chapter category
The first character of every ICD-10-CM code is always an alpha (letter) character, which identifies the chapter grouping.
What does the abbreviation 'NEC' mean in ICD-10-CM?
Answer: Not Elsewhere Classified
NEC stands for 'Not Elsewhere Classified,' used when the provider's documentation is specific but no dedicated code exists for that specificity.
What is the purpose of a placeholder 'X' in ICD-10-CM?
Answer: To allow a code to extend to a required 7th character position
The placeholder X fills an empty character position so that a code requiring a 7th character can be properly structured.
Where is the decimal point placed in an ICD-10-CM code?
Answer: After the 3rd character
The decimal point in an ICD-10-CM code is always placed after the 3rd character (the category), separating the category from the etiology/anatomic site/severity characters.
What does the abbreviation 'NOS' mean in ICD-10-CM?
Answer: Not Otherwise Specified
NOS means 'Not Otherwise Specified,' equivalent to 'unspecified,' used when documentation does not provide enough detail for a more precise code.