ICD-10 Codes for ADHD: F90.0, F90.1, F90.2 and F90.9

ADHD is coded in ICD-10-CM category F90: F90.0 predominantly inattentive type, F90.1 predominantly hyperactive type, F90.2 combined type, F90.8 other type and F90.9 unspecified type. The same codes apply to children and adults, and none changed for FY2027 per CMS. In Ona, the code chosen on the visit feeds its draft claim.

Quick answer:

• Five billable codes cover ADHD: F90.0, F90.1, F90.2, F90.8 and F90.9. The DSM-5 presentation names are listed as inclusion terms under the first three.
• "ADD" is not an ADHD code. The ICD-10-CM index sends attention deficit disorder without hyperactivity to F98.8, a catch-all code, so document the presentation instead.
• Psychiatric prescribers need EPCS for the stimulants DEA lists as Schedule II. In Ona that is a $25 add-on on top of $45 e-prescribing, per prescribing practitioner per month.

ADHD Codes at a Glance

Every code and descriptor below was checked against the FY2027 ICD-10-CM code descriptions, tabular list and index published by CMS, and cross-checked on icd10data.com, in October 2026. FY2027 codes apply to dates of service from October 1, 2026 through September 30, 2027.

Code	Official FY2027 descriptor	Inclusion terms and notes
F90.0	Attention-deficit hyperactivity disorder, predominantly inattentive type	Attention-deficit/hyperactivity disorder, predominantly inattentive presentation
F90.1	Attention-deficit hyperactivity disorder, predominantly hyperactive type	Attention-deficit/hyperactivity disorder, predominantly hyperactive impulsive presentation
F90.2	Attention-deficit hyperactivity disorder, combined type	Attention-deficit/hyperactivity disorder, combined presentation
F90.8	Attention-deficit hyperactivity disorder, other type	Index entry: attention-deficit hyperactivity disorder, specified type NEC
F90.9	Attention-deficit hyperactivity disorder, unspecified type	ADHD NOS; ADHD of childhood or adolescence NOS
F98.8	Other specified behavioral and emotional disorders with onset usually occurring in childhood and adolescence	Where the index sends attention deficit disorder without hyperactivity
R41.840	Attention and concentration deficit	A symptom code with an Excludes1 note for ADHD (F90.-)

F90 itself is a category, not a code. A claim that says F90 alone is incomplete, and the FY2027 guidelines state that a code is invalid if it has not been coded to the full number of characters required. Each of the five ADHD codes is four characters, so this is the simplest category in the chapter to get right and one of the easiest to get wrong on a hand-built superbill.

Is There an ICD-10 Code for ADD?

Not as its own code, and this is where the most common search on the topic leads people astray.

In the FY2027 alphabetic index, "Attention, deficit disorder or syndrome" points to F98.8, and only "with hyperactivity" sends the coder on to the ADHD codes. "Disorder, attention-deficit without hyperactivity" also points to F98.8. That code's full title is other specified behavioral and emotional disorders with onset usually occurring in childhood and adolescence, and its inclusion terms in the tabular list are things like nail-biting and thumb-sucking. It is a catch-all, and it does not describe what most clinicians mean when they say "ADD".

What most clinicians mean is the inattentive presentation of ADHD. That phrase, "attention-deficit/hyperactivity disorder, predominantly inattentive presentation", is an inclusion term under F90.0. So the documentation wording decides the code. A note that says "ADD" invites F98.8 from a careful coder; a note that names the presentation leads to F90.0. The diagnosis is the clinician's call. Making the note use the classification's language is the billing team's ask.

Matching the Presentation to the Code

The FY2027 tabular list maps the three DSM-5 presentations directly:

• Predominantly inattentive presentation is an inclusion term at F90.0.
• Predominantly hyperactive impulsive presentation is an inclusion term at F90.1.
• Combined presentation is an inclusion term at F90.2.

F90.8, other type, is for a documented ADHD type that fits none of the three. F90.9 is for ADHD documented without a type or presentation.

Section I.B.18 of the FY2027 guidelines says unspecified codes "have acceptable, even necessary, uses", and that each encounter should be coded to the level of certainty known at that encounter. An early evaluation visit that documents ADHD before the presentation is characterized can legitimately be F90.9. Section IV, for outpatient services, adds the other half: code to the highest level of specificity supported by the record. Once the note documents a presentation, the claim should follow it.

Some payer policies list accepted diagnoses for particular services, and a long run of F90.9 on ongoing medication management can invite questions. The specifics vary by payer, so the safe position is simply that the claim matches the most specific diagnosis in the note.

Adult Versus Child Coding

There is no separate adult ADHD code in ICD-10-CM. The F90 codes carry no age split, and an adult patient with combined presentation is F90.2, the same as a child.

Two details in the classification still trip people up:

• The F90.9 inclusion term mentions childhood. It reads "attention-deficit hyperactivity disorder of childhood or adolescence NOS", alongside plain "attention-deficit hyperactivity disorder NOS". That wording does not make F90.9 a pediatric-only code. It means an unspecified ADHD diagnosis in a young patient also lands there.
• F98.8 sits in a childhood-onset block. Its category is "other behavioral and emotional disorders with onset usually occurring in childhood and adolescence". That is one more reason F98.8 reads oddly on an adult's claim when the clinician meant ADHD, inattentive presentation.

For adults diagnosed later in life, the documentation question is the same as for anyone: does the note name the presentation, and is the diagnosis on the claim the one the clinician documented?

Coexisting Conditions and the Excludes2 List

The F90 category carries an Excludes2 note for anxiety disorders (F40.-, F41.-), mood disorders (F30-F39), pervasive developmental disorders (F84.-) and schizophrenia (F20.-). Under the FY2027 guidelines, Excludes2 means "not included here": the excluded condition is not part of the ADHD code, but a patient may have both, and both codes may be reported when appropriate.

So F90.2 and F41.1 on the same claim are not a conflict, provided both are documented diagnoses. Section IV.J of the guidelines tells outpatient coders to code all documented conditions that coexist and require or affect patient care.

The symptom code R41.840, attention and concentration deficit, works differently. It carries an Excludes1 note for ADHD (F90.-), so it is never reported alongside an F90 code. It belongs to visits where a symptom is documented and no ADHD diagnosis has been made. Section IV.H reinforces this: diagnoses documented as "rule out", "suspected" or "working diagnosis" are not coded in the outpatient setting, so an evaluation still in progress is coded to the symptoms or highest certainty reached.

What Changed for FY2027

Nothing in the ADHD codes. The CMS FY2027 tabular addendum touches chapter 5 only with a note change at F02 and the new code F64.A, gender identity disorder, in remission. F90, F98.8 and R41.840 carry the same codes and descriptors as before. To look a code up yourself, the CDC's ICD-10-CM page links to the NCHS code browser.

Prescribers: EPCS for Schedule II Stimulants

For a psychiatric prescriber, coding is half the ADHD workflow. The other half is the prescription. The DEA Diversion Control Division's list of controlled substances places amphetamine, lisdexamfetamine and methylphenidate in Schedule II. Sending a controlled-substance prescription electronically means using EPCS, electronic prescribing of controlled substances, which in Ona's setup involves identity proofing and a two-factor step at signing.

In Ona, e-prescribing runs on DoseSpot embedded in the patient chart and the visit. Per Ona's pricing, e-prescribing is $45 per prescribing practitioner per month and EPCS, which covers Schedule II-V controlled substances and requires the e-prescribing add-on, is a further $25. The setup and workflow, as Ona's feature page describes it:

• An Owner or Admin adds each prescriber's DEA registration in Settings, then DoseSpot. Identity proofing and two-factor setup happen with DoseSpot, and Ona notifies the prescriber and admins when controlled-substance prescribing is ready or a step fails.
• Controlled prescriptions go through the same DoseSpot screen, with its EPCS two-factor prompt at signing.
• Staff on proxy accounts can prepare ordinary prescriptions for a prescriber to review, but a proxy cannot sign, send or prescribe controlled substances.
• Refill requests, prescriptions that did not reach the pharmacy and prior authorization outcomes arrive in Ona's notification bell, and you respond in DoseSpot.

What Ona does not do is choose or check the medication for you: it keeps allergies, medications and supplements in step with DoseSpot so they are in front of the prescriber, and the clinical judgment stays with the prescriber.

From Chart to Claim in Ona

Ona is an AI-native, all-in-one practice management platform with CRM, EHR and RCM on one patient record, and behavioral health practices use the same record from the evaluation note to the paid claim.

Coding on the chart. Add diagnosis searches by name or ICD-10 code and narrows column by column through the hierarchy, with every row labeled billable or not billable. Ona's diagnoses help page states that a non-billable code cannot be added from the coded picker, so a bare F90 does not reach a visit. Certainty can be recorded as Provisional or Differential; under Section IV.H, the claim should still carry only established diagnoses.

The note. AI charting drafts against your templates from the recording, intake and chart, and every change waits for the clinician to keep or discard it. Signed notes lock, and corrections become amendments with a reason.

The claim. Each insured visit's draft claim rebuilds as diagnoses, procedures and services change, per Ona Insurance. The "Diagnosis codes on every line" billing rule makes every claim line carry a linked diagnosis, and blocking errors stop submission until fixed. Eligibility is checked at booking and again within 48 hours of the visit, so the copay conversation happens before the appointment.

The remittance. Claims go out through Ona Clearing House or a connected Claim.MD account. Denials return with payer reasons as alerts, and a denied claim can be corrected as a linked replacement and resubmitted. From visit billing to superbill and claim walks through the steps, including superbills for out-of-network patients.

What It Costs

Coding, charting and claims are part of the seat. Ona's pricing page lists $130 per practitioner and $45 per staff seat per month, 10% off annually, and a 14-day trial with no credit card. A prescriber adds $45 for e-prescribing and $25 for EPCS. Insurance billing adds an Ona Clearing House plan from $69 to $1,099 per month, with unlimited providers and payer enrollments on every plan. Practices with five or more practitioners or several locations get custom pricing.

This coding guidance is general and reflects the FY2027 code set per CMS; payer rules vary, so confirm specific requirements with the payer.

Frequently asked questions

What is the ICD-10 code for ADHD?

ADHD is coded in category F90. The billable codes are F90.0 predominantly inattentive type, F90.1 predominantly hyperactive type, F90.2 combined type, F90.8 other type and F90.9 unspecified type. F90 on its own is a category heading and is not a complete code.

What is the ICD-10 code for ADD?

There is no separate ADD code. The FY2027 index sends attention deficit disorder without hyperactivity to F98.8, a catch-all code for other childhood-onset behavioral and emotional disorders. ADHD, predominantly inattentive presentation, is an inclusion term under F90.0, so documenting the presentation leads to the ADHD code.

Is there a different ICD-10 code for adult ADHD?

No. The F90 codes have no age split, so an adult is coded with the same F90.0, F90.1, F90.2, F90.8 or F90.9 as a child. The inclusion term under F90.9 mentions childhood or adolescence, but F90.9 also covers ADHD NOS at any age.

When is F90.9 the right code?

When ADHD is documented without a type or presentation. The FY2027 guidelines accept unspecified codes when they reflect what is known at that encounter, but once the note documents a presentation, the claim should carry F90.0, F90.1 or F90.2.

Can ADHD and anxiety be coded together?

Yes, when both are documented diagnoses. F90 carries an Excludes2 note for anxiety disorders, and the FY2027 guidelines say Excludes2 conditions may be reported together. The symptom code R41.840 is different: it has an Excludes1 note for ADHD and is never reported with an F90 code.

Do I need EPCS to prescribe ADHD stimulants electronically?

For Schedule II stimulants, yes. The DEA lists amphetamine, lisdexamfetamine and methylphenidate as Schedule II, and sending a controlled-substance prescription electronically means using EPCS. In Ona, EPCS is a $25 add-on per prescribing practitioner per month on top of $45 e-prescribing.

Next step

Bring an ADHD medication management visit to a 15-minute demo: the diagnosis on the chart, the EPCS prescription from the same visit and the draft claim that picks the code up. Or start the 14-day free trial from the pricing page, no credit card needed.