ICD-10-CM F31 is the diagnosis code for Bipolar disorder. This code falls under the section "Mood [affective] disorders" within Chapter 5 â Mental, Behavioral and Neurodevelopmental disorders (F01-F99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as F31. They are mutually exclusive:
The following conditions are not included in F31. If the patient has both, code each condition separately:
Understanding where F31 sits in the ICD-10-CM classification helps ensure proper coding:
No, F31 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
F31 is the ICD-10-CM diagnosis code for "Bipolar disorder". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
F31 is located in Section F30-F39 â "Mood [affective] disorders" within Chapter 5 of the ICD-10-CM Tabular List.
F31 has 10 sub-code(s) that provide more specific detail: F31.0, F31.1, F31.2, F31.3, F31.4 and more.
Use F31 when the patients documented diagnosis matches "Bipolar disorder" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Bipolar disorder is F31.
No, F31 is non-billable. Use a more specific sub-code for primary diagnosis billing.
F31 is in Chapter 5 of the ICD-10-CM Tabular List.
Type 1 Excludes for F31 include: bipolar disorder, single manic episode (F30.-); major depressive disorder, single episode (F32.-); major depressive disorder, recurrent (F33.-).
Yes, F31 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.