99213 vs 99214 in Psychiatry — How to Choose the Right Code

The difference between 99213 and 99214 in outpatient psychiatry comes down to medical decision making, not how long the visit lasted. A 99213 requires low complexity. A 99214 requires moderate complexity. Understanding what separates them is what keeps you from both underbilling stable visits and overbilling simple ones.

The Core Distinction

Under the 2021+ E/M guidelines, you select your code based on medical decision making (MDM) or time — not exam elements, not how many systems you reviewed. MDM is determined by three domains: the number and severity of problems you addressed, the data you reviewed and analyzed, and the risk of your treatment decisions.

Under CPT MDM guidelines, to reach a code level, you need to meet criteria in two of the three domains at the target level.

99213 — What It Actually Requires

One stable chronic condition. Medication continuation with no changes. Low risk. No external data reviewed.

The visit is defensible at 99213 when the patient is doing well, you are continuing current treatment, and no new clinical decisions were required. A stable depression follow-up on an SSRI with no side effects and no changes is 99213.

What your note needs: a clear chief complaint, the diagnosis linked to your plan, brief rationale for continuing current treatment, a risk statement with clinical context, and a follow-up plan.

99214 — What It Actually Requires

Two or more conditions being actively managed, or one condition that is worsening or requires a clinical decision. Moderate risk. Some form of decision-making documented.

The most important thing most clinicians miss: You do not need to change a medication to bill 99214. A reasoned decision to continue current treatment — partial response, monitoring for tolerability, watchful waiting with documented rationale — counts as clinical decision-making. Doing nothing still requires reasoning.

Common scenarios that support 99214:

• MDD and GAD both being actively managed, even without medication changes
• Medication adjustment based on response or side effects
• New symptom requiring clinical judgment
• Controlled substance monitoring with documented PMP check and adherence assessment
• Patient reports worsening despite current treatment
• Documented clinical reasoning for continuing treatment — partial response, monitoring for tolerability, watchful waiting with explicit rationale

The Mistake That Costs Money

Most clinicians underbill 99214 because they assume clinical decision-making requires action. It does not. If you assessed the patient, considered alternatives, and made a reasoned choice — including the choice to stay the course — that is moderate complexity work. If you documented that reasoning, you have a defensible 99214.

The other mistake is defaulting to 99215 for every visit with a complex patient. The code reflects what happened in this visit, not how sick the patient is overall. A stable bipolar patient on lithium with no changes and no new concerns is not automatically 99215.

A Quick Reality Check

Before you finalize your code, ask yourself:

• Did I manage more than one problem, or did one problem require active decision-making?
• Did I document my reasoning — not just my action?
• Is the risk documented — what I was monitoring for and why?

If yes to two of those, you have a defensible 99214.

The full MDM framework — including all three domains with psychiatric-specific examples, code-level documentation floors, and audit risk patterns — is covered in Billing II: Minimum Defensible Documentation inside Think Beyond Education.