ICD-10 Code F98.8 – Other Specified Behavioral and Emotional Disorders with Onset Usually Occurring in Childhood and Adolescence (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F98.8 – Other specified behavioral and emotional disorders with onset usually occurring in childhood and adolescence
What it is
F98.8 identifies behavioral or emotional problems that begin in childhood or adolescence but do not fit a more specific ICD-10 category. Use it when the record documents a distinct disorder and no better code is available.
Clinical signs
Clinical features vary; refer to documentation. The chart may describe persistent behavior or emotional symptoms that affect functioning, with enough detail to support a specified disorder but not a more precise diagnosis.
When to use this code
Use F98.8 when the clinician documents an “other specified” childhood-onset behavioral or emotional disorder and names the condition in the note. It can also apply when the presentation is clearly described but does not meet criteria for a listed code. If the documentation is vague, check documentation before assigning this code.
Do not use for
Do not use this code for a condition with a more specific ICD-10 diagnosis, or when the record only says “unspecified” without further detail. Do not use it if the behavior is better explained by another mental, developmental, or neurologic disorder.
Coding tip
Code the exact diagnosis stated by the provider, and verify that “other specified” is documented before selecting F98.8.