Non-Billable / Non-Specific Code
ICD-10-CM F42 is the diagnosis code for Obsessive-compulsive disorder. This code falls under the section "Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental 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 are not included in F42. If the patient has both, code each condition separately:
Understanding where F42 sits in the ICD-10-CM classification helps ensure proper coding:
No, F42 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
F42 is the ICD-10-CM diagnosis code for "Obsessive-compulsive disorder". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
F42 is located in Section F40-F48 â "Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders" within Chapter 5 of the ICD-10-CM Tabular List.
F42 has 5 sub-code(s) that provide more specific detail: F42.2, F42.3, F42.4, F42.8, F42.9.
Use F42 when the patients documented diagnosis matches "Obsessive-compulsive 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 Obsessive-compulsive disorder is F42.
No, F42 is non-billable. Use a more specific sub-code for primary diagnosis billing.
F42 is in Chapter 5 of the ICD-10-CM Tabular List.
Yes, F42 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.