Test Taking Tip for ICD-10 – Of course, I’m a diagnosis coder by trade so I really
like ICD- 10 and I could talk all day on this, so I
kind of pushed this back to one of the latter slides
so I didn’t get carried away.
Q: Test Taking Tip for ICD-10: What is the best method for ICD-10 multiple choice questions,
compare and contrast the ICD-10 answers in Tabular or use the Index?
A: Really, this was quite unique because when you’re doing multiple choice questions for
testing, we usually say, “Well, you don’t have to rely on the Index as much because
they’re giving you the codes.
They know you know how to look up codes in the index and then go to the tabular.
They’re really focusing on guidelines.”
But with ICD-10, this may surprise you: “The ICD-10 index will direct you to the proper
code, but often the Tabular does not even list the diagnosis that you are looking for.”
This is very different than ICD-9.
“If you just tried to compare two codes in the Tabular, you may not be able to recognize
the proper code.
Bottom line: Use the Index to find the proper codes.”
This is for looking up codes in the real world, too.
Here are some examples:
Example 1: Diagnosis is skin tags.
What is the ICD-10-CM code?
Well, if these were ICD-9 codes we just go look those up and then we’ll be able to
compare them.
However, none of these codes here list “skin tags” in the description in the Tabular.
Huh!
So, let’s look at them: D23.9 - Other benign neoplasm of skin, unspecified
D23.5 - Other benign neoplasm of skin of trunk L91.8 – Other hypertrophic disorders of
the skin L90.8 – Other atropic disorders of skin
Well, that didn’t give us an answer.
As we look up in the Index, we look up tag/skin/ points directly to L91.8, which is “other
hypertrophic disorders of the skin.”
Again, we wouldn’t have been able to figure that out, most likely.
Example 2: Diagnosis is enlarged thyroid.
What is the ICD-10-CM code?
We’ve got four choices here, they’re very close together.
Again, these are unspecified probably, it’s just like ICD-9 in that way.
Compare and Contrast method: None of these lists “enlarged thyroid” in the description
in the Tabular:
E03.8 - Other specified hypothyroidism
E04.0 - Other nontoxic diffuse goiter, diffuse (colloid) nontoxic goiter, simple nontoxic
goiter
E04.9 - Nontoxic goiter unspecified, goiter NOS, nodular goiter (nontoxic) NOS
E07.9 – Disorders of thyroid, unspecified
Index Method: We looked under enlarged/thyroid says to see Goiter . Under Goiter, none of
the subterms apply, so use the default codes, which is: Goiter (plunging (substernal) E04.9.
And you would not have been able to find that code if you had not gone to the Index.
Again, use your Index.