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Standards Section 5
Diagnosis Cluster
Question | Answer |
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a group of two or more ICD-10-CA codes that relate to one another. Assigning the same character (uppercase alpha character A to Y) to each of the codes in this group is the mechanism that links these codes together on the abstract. | Diagnosis cluster |
It is mandatory to apply a diagnosis cluster, when a code from the following categories is assigned: | • External causes related to medical and surgical care complications (Y40–Y84); and • Resistance to antibiotics (U82 and U83) and other antimicrobial drugs (U84). |
Coders must assign the same diagnosis cluster character (uppercase alpha character A to Y) to all codes within the: | Same diagnosis cluster |
When there are two or more diagnosis clusters on the abstract, the coder must use: | a different uppercase alpha letter A to Y for the codes within the cluster. |
The purpose of the diagnosis cluster for a drug-resistant microorganism infection is to: | link resistance to a specific drug with the microorganism and the infection site with which the drug resistance is associated |
There is no limit to the number of codes assigned to the same diagnosis cluster. | What is the limit to the number of codes that can be assigned to the same diagnosis cluster. |
Should a diagnosis cluster be applied when there is a post-intervention condition documented? | Yes, it is mandatory for post-intervention conditions regardless of diagnosis type assignment. |
Is an application of a diagnosis cluster required for an adverse effects in therapeutic use? | Yes, it is mandatory for adverse effects in therapeutic use. |