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ICD 9 CM Coding Guidelines — Omit Codes

1,153 views · Published 5 February 2013 · 6:26 · Indexed 9 October 2026

Channel: CCO Academy · 2013 · Education

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ICD 9 CM Coding Guidelines — Omit Codes https://www.cco.us/icd-9-cm-mini-course-yt

Alicia:  Okay, omit codes. I had to think about this for a little bit and I actually sent a message out to a couple of my coder friends who have been coding a lot longer than I have and who have also done inpatient coding. And got a really good response from this. The question was, "Can you please explain the use of omit code in the ICD 9? I just don't get it. If we're not to use the code then why do they have it in the book? This is what I'm thinking it means. Can you confirm or tell me what it does in fact mean? The example in volume 3 ICD 9 Hospital Procedures 39.3 suture of a vessel. Then under that is it has an exclude note and under that, an omit code and it lists other codes which there's the... those are all procedural codes for inpatient coding. Does it mean that if I am coding anything from this list that I should not code anything in 39.3 category as well?"

So I got a great response from Lisa who is one of the HCC coders. They're training with me and she has a lot of experience so a little shout out to her. What she was telling me is that when you're dealing with omit codes you see them of course, mostly in volume 3. And for all of our PBC students, your step by step book, I think it's in chapter 8. They will mention volume 3 codes because the step by step book that we use actually has the chapter inpatient coding. So they're going to you know, teach you that. But we just don't do that because we're doing physician-based coding. We don't you know, so you're not missing something in your ICD 9 manual because you don't have volume 3 in there. You have the physician based manuals, not the hospital based.

So, inpatient procedures. There are a few omit codes for actual diagnosis codes but even though those are few and far between and usually have V codes. So the example here was V49.87. You would omit this code and not use it if we, the healthcare provider, put restraints on due to a procedure. 

Okay so in other words, like Laureen had said before, it's bundled in. You know, if you have to restrain a patient because that's part of the procedure that they're doing, you're not going to code for that. So you're going to omit V49.87 which is actually putting on restraints. Does that make sense? You know, you don't need to code it because it's included so omit it or leave it out. 

37.89 is one of those inpatient procedure codes. If during the procedure, a temporary pacing system was used, you would omit or not use the temporary pacing code as it would be bundled into the procedure. And that's actually used for like pacemakers. Before they plug in that pacemaker, they... I guess what they do is you know, they put you on a little temporary pacemaker. So you've got your heart going where they want it, they put in the pacemaker and then they take off the temporary pacing system and you know, start up the pacemaker. So if you're  having a pacemaker put in, that's all part of the procedure. So you know, it's all included. You don't use that. 

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