| A | B |
|---|
| chronic | slow progression 6 months+ |
| acute flare-up | sudden possible in chronic condition |
| addenda | new revised deleted on net |
| effective ICD-9 | use immediately |
| poisoning | harmful reaction by drug overdose |
| ICD-9 tabular list | corresponding codes numeric order |
| category | 3 digit code |
| coexisting condition | affects pts primary conditon or tx during visit |
| combination code | etiology & manifestation |
| etiology | Greek for origin or cause |
| convention | typographic or icon to show 5th digit needed |
| E-code | cannot stand alone explains illness or injury |
| late effect | occurs a period of time after acute disease is resolved |
| Main term | boldfaced in alphabetic index |
| NEC | not elsewhere classified |
| NEC code | condition cannot be placed in category even though specifics provided |
| NOS | not other specified |
| NOS code | used when too little info available |
| primary diagnosis | reason for current encounter |
| CC | chief complaint, reason why there |
| subterms | below main terms |
| supplemental terms | enclosed in brackets/parentheses |
| tabular list | dx codes in numeric order |
