ICD-10 Code E79.9 – Disorder of purine and pyrimidine metabolism, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E79.9 – Disorder of purine and pyrimidine metabolism, unspecified
What it is
E79.9 identifies an unspecified disorder affecting purine and pyrimidine metabolism. Use it when the record confirms a nucleotide metabolism disorder but does not name the exact condition.
Clinical signs
Clinical features vary; refer to documentation. Patients may have findings related to abnormal purine or pyrimidine handling, but the specific presentation depends on the underlying disorder.
When to use this code
Use this code when the clinician documents a disorder of purine and pyrimidine metabolism without further detail. It is appropriate when the exact metabolic defect is not specified in the note, discharge summary, or problem list.
Choose the more specific code if the record names a defined condition, such as gout-related or hereditary nucleotide metabolism disease. If the diagnosis remains nonspecific after review, this code supports accurate reporting.
Do not use for
Do not use E79.9 when the documentation identifies a specific purine or pyrimidine disorder. Also avoid it if the condition is unrelated to nucleotide metabolism; check documentation.
Coding tip
Query the provider for the exact metabolic disorder before defaulting to this unspecified code.