ICD-10 Code F42.8 – Other obsessive-compulsive disorder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F42.8 – Other obsessive-compulsive disorder
What it is
F42.8 identifies obsessive-compulsive disorder presentations that do not fit the more specific OCD codes. Use it for persistent obsessions, compulsions, or both when the record supports OCD but names an atypical or mixed subtype.
Clinical signs
Clinical features vary; refer to documentation. Typical records describe intrusive thoughts, repetitive behaviors, or mental rituals that are time-consuming, distressing, or impair function.
When to use this code
Use this code when the clinician documents OCD but does not specify a more exact subtype such as one with primarily obsessions or primarily compulsions. It may also fit mixed or unusual OCD presentations that are clearly diagnosed as obsessive-compulsive disorder.
Code from the provider’s assessment, not from isolated worries, habits, or personality traits. If the note is unclear, check documentation before assigning F42.8.
Do not use for
Do not use F42.8 for anxiety disorders, tic disorders, or body-focused repetitive behaviors unless OCD is specifically diagnosed. Do not use it when a more specific OCD code is documented.
Coding tip
Look for the exact OCD wording in the assessment and code the most specific documented subtype first.