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The Chronic Condition Indicator Refined (CCIR) for ICD-10-CM facilitates health services research by allowing the researcher to readily identify a diagnosis as indicating a chronic condition. Beginning v2023.1, the CCIR for ICD-10-CM returns to a concept consistent with the ICD-9-CM version of the tool, which distinguishes chronic from non-chronic conditions. The definition of a chronic condition is defined as a condition that lasts 12 months or longer and meets one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products, treatment, services, and special equipment.
- The condition places limitations on self-care, independent living, and social interactions.
Each data element CCIRn has a one-to-one correspondence to the array of ICD-10-CM codes. For example, CCIR1 includes the CCIR assignment for the ICD-10-CM code in the first position of the ICD-10-CM diagnosis code array (I10_DX1). The values of the data elements CCIRn indicate whether the corresponding ICD-10-CM code is one of the following:
- Chronic (value 1)
- Examples include malignant cancer, diabetes, obesity, hypertension, and most mental health conditions.
- Not Chronic (value 0)
- Examples include influenza, bacterial infection, pregnancy, and most initial encounters for an injury.
- No Determination (value 9)
- Examples include external cause of morbidity codes, and codes indicating a fracture or complication of a prosthetic, prosthetic device, or other device, implant, or graft.
Information on the CCIR for ICD-10-CM diagnoses, including a User Guide, is available on the HCUP User Support website under Tools and Software.
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