Mitochondrial metabolism disorder, unspecified

This code represents a broad category of inherited metabolic disorders resulting from defects in mitochondrial function, specifically those affecting metabolic pathways. These defects impair the cell's ability to generate energy, leading to a wide range of symptoms affecting multiple organ systems. The "unspecified" nature indicates that the precise enzymatic defect or genetic mutation causing the mitochondrial metabolism disorder has not been identified or documented.

Use this code when a patient is diagnosed with a mitochondrial metabolism disorder, but the specific type or underlying genetic cause is not yet determined or documented. This is appropriate for initial diagnoses or when diagnostic workup is ongoing. Documentation should clearly state "mitochondrial metabolism disorder" without further specificity.

• Avoid using this code if a more specific mitochondrial disorder (e.g., Leigh syndrome, MELAS) is documented; always code to the highest level of specificity.
• Consider sequencing this code as a primary diagnosis when it is the reason for the encounter, or as a secondary diagnosis when it is a co-morbidity.
• Query the provider for further specificity if the documentation suggests a known specific mitochondrial disorder but does not explicitly name it.