ICD-10 Code E74.820 – SLC13A5 Citrate Transporter Disorder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E74.820 – SLC13A5 Citrate Transporter Disorder
What it is
E74.820 identifies SLC13A5 citrate transporter disorder, a rare inherited metabolic condition caused by changes in the SLC13A5 gene. It affects citrate transport and is associated with a neurologic disorder.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include early-onset seizures, developmental delay, and abnormal neurologic findings consistent with this genetic disorder.
When to use this code
Use E74.820 when the clinician documents SLC13A5 citrate transporter disorder, citrate transporter deficiency, or a confirmed SLC13A5-related diagnosis. You may also use it when the record clearly links the patient’s condition to this specific gene disorder. Check documentation if the note is nonspecific.
Do not use for
Do not use this code for unspecified epilepsy, generic developmental delay, or other metabolic disorders without documented SLC13A5 involvement. If the diagnosis is not confirmed, code the documented symptom or condition instead.
Coding tip
Code the confirmed genetic diagnosis only when the provider names it explicitly or documents a clear SLC13A5 etiology.