ICD-10 Code F31.70 – Bipolar disorder, currently in remission, most recent episode unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F31.70 – Bipolar disorder, currently in remission, most recent episode unspecified
What it is
This code identifies bipolar disorder in a remission phase when the most recent mood episode is not specified. Use it when the record confirms bipolar disorder but does not document whether the last episode was manic, depressive, or mixed.
Clinical signs
Clinical features vary; refer to documentation. Bipolar disorder may include past episodes of elevated or irritable mood, depression, decreased need for sleep, or impaired functioning, but this code applies when the condition is currently in remission.
When to use this code
Use F31.70 when the provider documents bipolar disorder as “in remission” and does not identify the most recent episode. It is appropriate for follow-up visits, stable maintenance care, or problem lists when the episode type is not stated. Check documentation if remission status is unclear.
Do not use for
Do not use this code if the record specifies the most recent episode as manic, depressed, or mixed. Also avoid it when bipolar disorder is active rather than in remission, or when documentation only suggests a mood disorder without confirmation.
Coding tip
Match the code to the provider’s exact wording; if the last episode type is documented, choose the more specific bipolar code.