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Diabetes with Long-term Insulin and Oral Medications
The ICD-10-CM Official Guidelines for Coding and Reporting has specific instructions pertaining to correctly reporting long term use of insulin and oral hypoglycemics. When a provider documents that a patient receives long term insulin or oral medications, it is appropriate to report either Z79.4, long-term (current) use of insulin or Z79.84, long-term (current) use of oral hypoglycemic drugs. However, when the provider documents that a patient receives both insulin and oral medications, it is appropriate to ONLY report a diagnosis code for the long-term use of insulin. It is important for coders to remember this guidance to prevent unnecessary errors when reporting all final secondary diagnoses.
L97.529, non-pressure chronic ulcer of other part of left foot with unspecified severity
Z79.4, long-term (current) use of insulin