ADHD Diagnosis Codes
The ICD-10-CM codes for ADHD are F90.0 (predominantly inattentive presentation), F90.1 (predominantly hyperactive-impulsive presentation), F90.2 (combined presentation), and F90.8 (other specified/unspecified ADHD), with corresponding ICD-9-CM codes of 314.00 for inattentive type and 314.01 for the other presentations. 1
ICD-10-CM Codes (Current Standard)
The 2019 AAP clinical practice guideline defines four ADHD diagnostic categories with their corresponding codes 1:
- F90.0 - ADHD, predominantly inattentive presentation (ADHD/I)
- F90.1 - ADHD, predominantly hyperactive-impulsive presentation (ADHD/HI)
- F90.2 - ADHD, combined presentation (ADHD/C)
- F90.8 - ADHD, other specified and unspecified
ICD-9-CM Codes (Legacy)
For historical reference or systems still using ICD-9:
- 314.00 - ADHD, predominantly inattentive presentation
- 314.01 - ADHD, predominantly hyperactive-impulsive, combined, and other specified/unspecified presentations
Clinical Context
These codes align with DSM-5 diagnostic criteria and are well-established with third-party payers, health care systems, and across psychiatric, psychological, and primary care settings 1. The DSM-5 classification system represents the standard most frequently used by clinicians and researchers for rendering and documenting ADHD diagnoses 1.
Important Coding Considerations
Use the single ICD-9 code family 314.X when ascertaining ADHD cases from medical records - research demonstrates this simple approach has sensitivity of 0.81, positive predictive value of 0.83, specificity of 0.98, and negative predictive value of 0.97, with machine learning approaches offering no significant advantage 2.
The ICD-10-CM classification scheme is logically organized and straightforward to navigate once you understand its structure. Rely directly on ICD-10-CM for diagnosis coding rather than secondary sources like DSM-5-TR, as the DSM coding advice is limited in scope regarding the full range of relevant diagnosis codes 3.