ICD-10 for therapists

F41.0 — Panic disorder

Reviewed by Albert Wong, PhD, Clinical Psychologist · Updated July 29, 2026

Recurrent unexpected panic attacks with persistent worry about further attacks or maladaptive behavior change, not limited to another disorder's triggers.

Code: F41.0 (ICD-10-CM)
Common CPT pairings: 90791 · 90834 · 90837

Clinical picture

At least one attack followed by a month or more of anticipatory worry or avoidance behavior.
Rule out cardiac, thyroid, and stimulant causes on first presentation; clients frequently arrive via the ER.
Interoceptive and situational exposure (CBT for panic) is first-line; document the exposure hierarchy in the plan.
If avoidance extends broadly to situations where escape feels difficult, assess agoraphobia (F40.00), which is coded separately in ICD-10.

Documentation tips

Chart attack frequency, triggers (or their absence — unexpected attacks are definitional), and the avoidance pattern.
Track a panic-specific log or measure; reduced attack frequency and re-approach of avoided situations evidence progress.

Billing notes

Standard psychotherapy codes; exposure sessions conducted outside the office are billable when clinically justified and documented, but telehealth POS rules still apply.

Related codes

Practice Harbor puts the right code one click away — in your notes, your claims, and your superbills.

Start free — no credit card

This reference summarizes ICD-10-CM coding conventions and common billing practice for licensed clinicians. It is not medical, legal, or payer-specific billing advice; diagnosis requires clinical evaluation, and payer policies vary. Verify codes against the current ICD-10-CM release.