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If there are separate codes for both the acute and chronic forms of a condition, the code for the chronic condition is sequenced first as long as both codes are listed at the same indentation level of the Index.
Section IV of the Official Guidelines for Coding and Reporting contains information regarding outpatient coding.
It is important to follow any cross-reference instruction in the Index of the I-10, such as see also.
Systemic lupus erythermatosus with associated endocardititis (M32.11) is an example of dual coding.
A combination code is a single code used to classify:
ALL OF THE ABOVE: two diagnoses, a diagnosis with an associated secondary process (manifestation), a diagnosis with an associated complication
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