F90.1 ICD-10-CM Code: Attention-deficit hyperactivity disorder, predominantly hyperactive type
F90.1 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC Buddy coding tools
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FY 2026 Apr update / Mental, Behavioral and Neurodevelopmental disorders (F01-F99) / Behavioral and emotional disorders with onset usually occurring in childhood and adolescence (F90-F98)
F90.1
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceAttention-deficit hyperactivity disorder, predominantly hyperactive type
A neurodevelopmental condition characterized by excessive movement, fidgeting, and impulsive behavior, with less prominent attention difficulties.
Buddy Insight
ADHD predominantly hyperactive-impulsive type is characterized by excessive motor activity, fidgetiness, talkativeness, difficulty waiting turn, and acting without thinking, without significant inattention symptoms.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
HistoricalHistorical
Not used for CY2026 payment
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
MappedHCC 133
Code-level coefficient reference
Code Book Path
Inclusion Terms
Official- Attention-deficit/hyperactivity disorder, predominantly hyperactive impulsive presentation
Excludes 2
Official- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)Inherited from F01-F99, F90
- anxiety disorders (F40.-, F41.-)Inherited from F01-F99, F90
- mood [affective] disorders (F30-F39)Inherited from F01-F99, F90
- pervasive developmental disorders (F84.-)Inherited from F01-F99, F90
- schizophrenia (F20.-)Inherited from F01-F99, F90
Related Codes
Includes
Official- disorders of psychological developmentInherited from F01-F99, F90
- attention deficit disorder with hyperactivityInherited from F01-F99, F90
- attention deficit syndrome with hyperactivityInherited from F01-F99, F90
Excludes 1
OfficialNo Excludes 1 notes are included in this display for F90.1. Check the code and parent instructions in the Code Book.
Code First
OfficialNo Code First sequencing instructions are included in this display for F90.1. Check the code and parent instructions in the Code Book.
Use Additional
OfficialNo Use Additional Code instructions are included in this display for F90.1. Check the code and parent instructions in the Code Book.
Code Also
OfficialNo Code Also instructions are included in this display for F90.1. Check the code and parent instructions in the Code Book.
Buddy Documentation Tip
MEAT Support
Audit Caution
Common Mistakes
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is F90.1 an HCC code?
F90.1 is not in the CMS-HCC V28 or V24 community payment model. F90.1 has a separate mapping under the Part D RxHCC model (HCC 133 (Anxiety and Other Psychiatric Disorders)); the applicable result needs member context.
- Code
- F90.1
- Description
- Attention-deficit hyperactivity disorder, predominantly hyperactive type
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- Yes
- Payment year
- 2026
HCC Category Mapping
These are source-labeled model coefficients, not member totals. A category may still be removed by hierarchy or model cleanup rules. Weights are not directly comparable across models: CMS-HCC V28 and V24 use Community, Non-Dual, Aged; ESRD uses the dialysis continuing-enrollee model; RxHCC is the Part D continuing-enrollee, non-low-income, aged weight (a larger scale than CMS-HCC). ACA/HHS has no single weight — it varies by metal level. Actual per-patient RAF contribution depends on member context, hierarchy and cleanup rules, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains available for historical review.
Work F90.1 in the Code Book — tabular path, V28 RAF reference, and MEAT checklist →
MEAT review for F90.1
For F90.1, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule.
- MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
- EEvaluate: test results, medication response, or physical findings reviewed by the provider
- AAssess: explicit mention in the assessment or plan with acknowledgment of status
- TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis
Coder workflow notes
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What This Code Means
F90.1 is the ICD-10-CM diagnosis code for attention-deficit hyperactivity disorder, predominantly hyperactive type. A neurodevelopmental condition characterized by excessive movement, fidgeting, and impulsive behavior, with less prominent attention difficulties. F90.1 sits in the ICD-10-CM chapter for mental, behavioral and neurodevelopmental disorders (f01-f99), within the section covering behavioral and emotional disorders with onset usually occurring in childhood and adolescence (f90-f98).
F90.1 has no mapping under the CMS-HCC V28 or V24 community payment models. F90.1 has a separate mapping under the Part D RxHCC model (HCC 133 (Anxiety and Other Psychiatric Disorders)); the applicable result needs member context. Do not assign V28 risk adjustment value from this page; verify the applicable model and payment year before using this code for risk adjustment.
Document specific hyperactive and impulsive symptoms observed in clinical notes to support this subtype.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for F90.1 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Document specific hyperactive and impulsive symptoms observed in clinical notes to support this subtype
- •Distinguish from combined type by confirming inattention is not the primary presenting concern
Clinical Significance
ADHD predominantly hyperactive-impulsive type is characterized by excessive motor activity, fidgetiness, talkativeness, difficulty waiting turn, and acting without thinking, without significant inattention symptoms. This presentation is more commonly identified in young children and is often the first subtype to be recognized due to its disruptive behavioral manifestations. It may evolve to combined type as inattention becomes more apparent with increasing academic demands.
Documentation Requirements
- ✓Provider documentation specifying ADHD, predominantly hyperactive-impulsive presentation/type
- ✓Evidence of six or more hyperactivity-impulsivity symptoms (adults: five or more) persisting for at least 6 months
- ✓Documentation that fewer than six inattention symptoms are present (otherwise combined type)
- ✓Evidence of symptoms in two or more settings with functional impairment
- ✓Documentation that symptoms are not better explained by another condition (mania, anxiety, oppositional defiant disorder)
Commonly Confused Codes
- •F90.0: ADHD, predominantly inattentive type; inattentive type lacks significant hyperactivity-impulsivity
- •F90.2: ADHD, combined type; combined type meets full criteria for both dimensions
- •F90.9: ADHD, unspecified type; use F90.1 when predominantly hyperactive subtype is specified
- •F31.x: Bipolar disorder; hyperactivity and impulsivity during mania can mimic ADHD but is episodic, not persistent