Attention-deficit hyperactivity disorders (F90)
ICD-10 code F90 covers various types of attention-deficit hyperactivity disorders (ADHD), a group of neurodevelopmental conditions identified by patterns of inattention, hyperactivity, and impulsivity. These codes specify different ADHD presentations to guide accurate diagnosis and treatment.
The ICD-10 code for ADHD includes distinct classifications such as F90.0 for predominantly inattentive type, often known as "attention deficit hyperactivity disorder, inattentive presentation," emphasizing issues with focus rather than hyperactivity. F90.1 corresponds to the predominantly hyperactive type, sometimes referred to as "hyperkinesis with developmental delay," highlighting impulsive and hyperactive behaviors. The combined form, F90.2, captures individuals exhibiting both inattentiveness and hyperactivity symptoms. Other specified forms are coded as F90.8 (e.g., undifferentiated attention deficit disorder), while F90.9 includes unspecified or overlapping ADHD presentations, covering diverse terms like child or adult attention deficit disorders and related developmental speech or behavioral challenges. These codes assist healthcare providers and coders in differentiating ADHD subtypes for targeted management.
Mental and behavioural disorders (F01–F99)
Behavioral and emotional disorders with onset usually occurring in childhood and adolescence (F90-F98)
F90 Attention-deficit hyperactivity disorders
- F90.0 Attention-deficit hyperactivity disorder, predominantly inattentive type
- F90.1 Attention-deficit hyperactivity disorder, predominantly hyperactive type
- F90.2 Attention-deficit hyperactivity disorder, combined type
- F90.8 Attention-deficit hyperactivity disorder, other type
- F90.9 Attention-deficit hyperactivity disorder, unspecified type
Attention-deficit hyperactivity disorders (F90)
Instructional Notations
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- attention deficit disorder with hyperactivity
- attention deficit syndrome with hyperactivity
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- anxiety disorders F40 F41
- mood [affective] disorders F30 F39
- pervasive developmental disorders F84
- schizophrenia F20
Clinical Terms
The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.
Acromegaly
A condition caused by prolonged exposure to excessive HUMAN GROWTH HORMONE in adults. It is characterized by bony enlargement of the FACE; lower jaw (PROGNATHISM); hands; FEET; HEAD; and THORAX. The most common etiology is a GROWTH HORMONE-SECRETING PITUITARY ADENOMA. (From Joynt, Clinical Neurology, 1992, Ch36, pp79-80)
Growth Hormone-Secreting Pituitary Adenoma
A pituitary tumor that secretes GROWTH HORMONE. In humans, excess HUMAN GROWTH HORMONE leads to ACROMEGALY.
