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ICD 10
| Question | Answer |
|---|---|
| How many rules are there? | 2 |
| What are the 2 rules of ICD 10? | The Axis of Classification and Chapter and Code Structure |
| What is the Axis of Classification | Chapters are divided into 3 groups,body system chapters, special group chapters and other chapters |
| What are the features of chapter and code structure | To be valid each code must have 4 or 5 characters, if no 4th character is available the an X filler code must be used in 4th position even in 5 character codes eg M46.X5 |
| How many conventions are there | 7 |
| What are the 7 conventions | Cross references, instructional notes, punctuation, abbreviations, relational terms, modifiers and 5th characters |
| What are the 2 cross references seen in ICD 10 | See and see also |
| Describe the cross reference 'see' | A direct instruction to look elsewhere for a more appropriate code |
| Describe the cross reference 'see also' | To look elsewhere for a code which may be more appropriate |
| What are the 3 instructional notes | Includes, excludes and use |
| Describe the instructional note includes | A list of conditions which are associated with the presiding condition |
| Describe the instructional note excludes | Prevents a code being used when another code may be more appropriate |
| Describe the instructional note use | Instructs the coder to apply an additional code to fully reflect the condition |
| What are the 5 types of punctuation which can be found in ICD 10 | Brace, colon, point dash, brackets and parentheses |
| Describe a brace | A vertical line found at the beginning of a chapter which enclose a series of terms |
| Describe a colon | : used above a list of modifiers |
| Describe a a point dash | .- found in the alphabetical index and tabular list to indicate there are 4th character subdivisions |
| Describe brackets | [ ] used to enclose alternative words or instructions |
| Describe parentheses | ( ) found in the alphabetical index they enclose non essential modifiers or cross-reference terms |
| What are the abbreviations found in ICD 10 | NOS and NEC |
| Describe NOS | Not Otherwise Specified - there is no further information available relating to a condition (no essential modifier) |
| Describe NEC | Not Elsewhere Classified- other variants of the condition may appear elsewhere |
| What are the relational terms found in ICD 10 | With, without, resulting in |
| Describe with | When 2 or more conditions combine to form another condition |
| Describe without | A named element must not be present for the code to be assigned |
| Describe resulting in | Indicates a cause and effect relationship as confirmed by the clinician |
| Name the 2 modifiers | Essential and non essential |
| Describe an essential modifier | Appear as subterms below lead terms and affect code selection |
| Describe a non essential modifier | Appear in parentheses and do not affect code selection |
| How do numbers spelled into words appear | In alphabetical order |
| Hiw do Arabic numbers appear | At the end of a list of modifiers in numeric order |
| How do roman numerals appear | In numeric order |
| Which chapters are 5th characters found | Chapters 9, 10 13 and 19 |