ICD-10 Code E87.29 – Other acidosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E87.29 – Other acidosis
What it is
E87.29 identifies acidosis that is not classified elsewhere. Use it when documentation confirms an acid-base disorder, but the record does not specify a more precise type.
Clinical signs
Clinical features vary; refer to documentation. Patients may have findings consistent with acid-base imbalance, and the diagnosis is usually supported by clinician assessment and laboratory interpretation.
When to use this code
Use this code when the provider documents acidosis without naming a specific category such as respiratory, metabolic, or lactic acidosis. It is also appropriate when the chart supports acidosis, but the exact type remains unclear. Check documentation before assigning a more specific code.
Do not use for
Do not use E87.29 if the provider documents a more specific acidosis type that has its own code. Avoid using it for nonspecific abnormal laboratory results without a documented diagnosis.
Coding tip
Query the provider when the record says only “acidosis” and the type could be specified.