ICD-10-CM Excludes2 Notes · Chapter 5 · FY 2027 F01-F99

Excludes2 Notes in Chapter 5: Mental and behavioural disorders ICD-10-CM

An Excludes2 note means "NOT INCLUDED HERE": the excluded condition is not part of this code, but a patient may have both, so both codes may be reported. In Chapter 5 (F01-F99), notes printed in the chapter name other codes 251 times, and Excludes2 Notes anywhere in the Tabular List name the chapter’s codes 294 times, covering 136 distinct codes, categories and ranges. Switch views to read the list either way.

✓ From the official FY 2027 ICD-10-CM Tabular ListDefinitions follow the Official Guidelines, Section I.A

251

References in Its Notes

294

References to Its Codes

136

Chapter Codes Named

F01-F99

Chapter 5

Excludes2 Notes by the code that carries the note

78 of 78 shown

Chapter note Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
F02 Dementia in other diseases classified elsewhere applies to 24 codes
- dementia in alcohol and psychoactive substance disorders (F10-F19, with .17, .27, .97)
- vascular dementia (F01.5-, F01.A-, F01.B-, F01.C-)
F03 Unspecified dementia applies to 24 codes
- dementia with delirium or acute confusional state (F05)
- mild memory disturbance due to known physiological condition (F06.8)
F04 Amnestic disorder due to known physiological condition
- alcohol-induced or unspecified Korsakov's syndrome (F10.26, F10.96)
- Korsakov's syndrome induced by other psychoactive substances (F13.26, F13.96, F19.16, F19.26, F19.96)
F05 Delirium due to known physiological condition
- delirium tremens alcohol-induced or unspecified (F10.231, F10.921)
F06 Other mental disorders due to known physiological condition applies to 12 codes
- delirium due to known physiological condition (F05)
- dementia as classified in F01-F02
- other mental disorders associated with alcohol and other psychoactive substances (F10-F19)
F06.0 Psychotic disorder with hallucinations due to known physiological condition
- hallucinations and perceptual disturbance induced by alcohol and other psychoactive substances (F10-F19 with .151, .251, .951)
- schizophrenia (F20.-)
F06.1 Catatonic disorder due to known physiological condition
- catatonic schizophrenia (F20.2)
- dissociative stupor (F44.2)
F06.2 Psychotic disorder with delusions due to known physiological condition
- alcohol and drug-induced psychotic disorder (F10-F19 with .150, .250, .950)
- brief psychotic disorder (F23)
- delusional disorder (F22)
- schizophrenia (F20.-)
F06.3 Mood disorder due to known physiological condition applies to 5 codes
- mood disorders due to alcohol and other psychoactive substances (F10-F19 with .14, .24, .94)
- mood disorders, not due to known physiological condition or unspecified (F30-F39)
F06.4 Anxiety disorder due to known physiological condition
- anxiety disorders due to alcohol and other psychoactive substances (F10-F19 with .180, .280, .980)
- anxiety disorders, not due to known physiological condition or unspecified (F40.-, F41.-)
F07.0 Personality change due to known physiological condition
- specific personality disorder (F60.-)
F10.2 Alcohol dependence applies to 20 codes
- toxic effect of alcohol (T51.0-)
F10.22 Alcohol dependence with intoxication applies to 3 codes
- alcohol dependence with withdrawal (F10.23-)
F10.23 Alcohol dependence with withdrawal applies to 4 codes
- Alcohol dependence with intoxication (F10.22-)
F11.2 Opioid dependence applies to 15 codes
- opioid poisoning (T40.0-T40.2-)
F12.2 Cannabis dependence applies to 13 codes
- cannabis poisoning (T40.7-)
F13.2 Sedative, hypnotic or anxiolytic-related dependence applies to 20 codes
- sedative, hypnotic, or anxiolytic poisoning (T42.-)
F14 Cocaine related disorders applies to 48 codes
- other stimulant-related disorders (F15.-)
F14.2 Cocaine dependence applies to 16 codes
- cocaine poisoning (T40.5-)
F15 Other stimulant related disorders applies to 48 codes
- cocaine-related disorders (F14.-)
F17 Nicotine dependence applies to 20 codes
- tobacco use (smoking) during pregnancy, childbirth and the puerperium (O99.33-)
- toxic effect of nicotine (T65.2-)
F20 Schizophrenia applies to 8 codes
- alcoholism (F10.15-, F10.25-, F10.95-)
- brain disease (F06.2)
- epilepsy (F06.2)
- psychoactive drug use (F11-F19 with .15. .25, .95)
- schizotypal disorder (F21)
F20.3 Undifferentiated schizophrenia
- post-schizophrenic depression (F32.89)
F21 Schizotypal disorder
- Asperger's syndrome (F84.5)
- schizoid personality disorder (F60.1)
F22 Delusional disorders
- paranoid personality disorder (F60.0)
- paranoid psychosis, psychogenic (F23)
- paranoid reaction (F23)
F23 Brief psychotic disorder
- mood [affective] disorders with psychotic symptoms (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3)
F31 Bipolar disorder applies to 28 codes
- cyclothymia (F34.0)
F32 Depressive episode applies to 10 codes
- adjustment disorder (F43.2)
F34.1 Dysthymic disorder
- anxiety depression (mild or not persistent) (F41.8)
F40.2 Specific (isolated) phobias applies to 16 codes
- dysmorphophobia (nondelusional) (F45.22)
- nosophobia (F45.22)
F41 Other anxiety disorders applies to 5 codes
- acute stress reaction (F43.0)
- transient adjustment reaction (F43.2)
- neurasthenia (F48.8)
- psychophysiologic disorders (F45.-)
- separation anxiety (F93.0)
F41.1 Generalized anxiety disorder
- neurasthenia (F48.8)
F42 Obsessive-compulsive disorder applies to 5 codes
- obsessive-compulsive personality (disorder) (F60.5)
- obsessive-compulsive symptoms occurring in depression (F32.-, F33.-)
- obsessive-compulsive symptoms occurring in schizophrenia (F20.-)
F43.2 Adjustment disorders applies to 7 codes
- separation anxiety disorder of childhood (F93.0)
F44 Dissociative and conversion disorders applies to 10 codes
- malingering [conscious simulation] (Z76.5)
F44.0 Dissociative amnesia
- alcohol-or other psychoactive substance-induced amnestic disorder (F10, F13, F19 with .26, .96)
- amnestic disorder due to known physiological condition (F04)
- postictal amnesia in epilepsy (G40.-)
F44.1 Dissociative fugue
- postictal fugue in epilepsy (G40.-)
F44.2 Dissociative stupor
- catatonic disorder due to known physiological condition (F06.1)
- depressive stupor (F32, F33)
- manic stupor (F30, F31)
F45 Somatoform disorders applies to 10 codes
- dissociative and conversion disorders (F44.-)
- factitious disorders (F68.1-, F68.A)
- hair-plucking (F63.3)
- lalling (F80.0)
- lisping (F80.0)
- malingering [conscious simulation] (Z76.5)
- nail-biting (F98.8)
- psychological or behavioral factors associated with disorders or diseases classified elsewhere (F54)
- sexual dysfunction, not due to a substance or known physiological condition (F52.-)
- thumb-sucking (F98.8)
- tic disorders (in childhood and adolescence) (F95.-)
- Tourette's syndrome (F95.2)
- trichotillomania (F63.3)
F45.2 Hypochondriacal disorders applies to 4 codes
- delusional dysmorphophobia (F22)
- fixed delusions about bodily functions or shape (F22)
F50 Eating disorders applies to 30 codes
- feeding difficulties (R63.3-)
- feeding disorder in infancy or childhood (F98.2-)
F51 Sleep disorders not due to a substance or known physiological condition applies to 15 codes
- organic sleep disorders (G47.-)
F51.0 Insomnia not due to a substance or known physiological condition applies to 6 codes
- alcohol related insomnia (F10.182, F10.282, F10.982)
- drug-related insomnia (F11.182, F11.282, F11.982, F13.182, F13.282, F13.982, F14.182, F14.282, F14.982, F15.182, F15.282, F15.982, F19.182, F19.282, F19.982)
- insomnia NOS (G47.0-)
- insomnia due to known physiological condition (G47.0-)
- organic insomnia (G47.0-)
- sleep deprivation (Z72.820)
F51.1 Hypersomnia not due to a substance or known physiological condition applies to 4 codes
- alcohol related hypersomnia (F10.182, F10.282, F10.982)
- drug-related hypersomnia (F11.182, F11.282, F11.982, F13.182, F13.282, F13.982, F14.182, F14.282, F14.982, F15.182, F15.282, F15.982, F19.182, F19.282, F19.982)
- hypersomnia NOS (G47.10)
- hypersomnia due to known physiological condition (G47.10)
- idiopathic hypersomnia (G47.11, G47.12)
- narcolepsy (G47.4-)
F52 Sexual dysfunction not due to a substance or known physiological condition applies to 11 codes
- Dhat syndrome (F48.8)
F52.5 Vaginismus not due to a substance or known physiological condition
- vaginismus (due to a known physiological condition) (N94.2)
F52.6 Dyspareunia not due to a substance or known physiological condition
- dyspareunia (due to a known physiological condition) (N94.1-)
F54 Psychological and behavioral factors associated with disorders or diseases classified elsewhere
- tension-type headache (G44.2)
F55 Abuse of non-psychoactive substances applies to 6 codes
- abuse of psychoactive substances (F10-F19)
F60.0 Paranoid personality disorder
- paranoia (F22)
- paranoia querulans (F22)
- paranoid psychosis (F22)
- paranoid schizophrenia (F20.0)
- paranoid state (F22)
F60.1 Schizoid personality disorder
- Asperger's syndrome (F84.5)
- delusional disorder (F22)
- schizoid disorder of childhood (F84.5)
- schizophrenia (F20.-)
- schizotypal disorder (F21)
F60.2 Antisocial personality disorder
- borderline personality disorder (F60.3)
F60.3 Borderline personality disorder
- antisocial personality disorder (F60.2)
F60.5 Obsessive-compulsive personality disorder
- obsessive-compulsive disorder (F42.-)
F63 Impulse disorders applies to 7 codes
- habitual excessive use of alcohol or psychoactive substances (F10-F19)
- impulse disorders involving sexual behavior (F65.-)
F63.0 Pathological gambling
- excessive gambling by manic patients (F30, F31)
- gambling in antisocial personality disorder (F60.2)
F63.1 Pyromania
- adult with antisocial personality disorder (F60.2)
- alcohol or psychoactive substance intoxication (F10-F19)
- conduct disorders (F91.-)
- mental disorders due to known physiological condition (F01-F09)
- schizophrenia (F20.-)
F63.2 Kleptomania
- depressive disorder with stealing (F31.-, F32.-, F33.-)
- stealing in mental disorders due to known physiological condition (F01-F09)
F63.3 Trichotillomania
- other stereotyped movement disorder (F98.4)
F64.1 Dual role transvestism
- fetishistic transvestism (F65.1)
F64.2 Gender identity disorder of childhood
- sexual maturation disorder (F66)
F68.1 Factitious disorder imposed on self applies to 4 codes
- factitial dermatitis (L98.1)
- person feigning illness (with obvious motivation) (Z76.5)
F80.0 Phonological disorder
- speech articulation impairment due to hearing loss (F80.4)
- speech articulation impairment due to intellectual disabilities (F70-F79)
- speech articulation impairment with expressive language developmental disorder (F80.1)
- speech articulation impairment with mixed receptive expressive language developmental disorder (F80.2)
F80.1 Expressive language disorder
- acquired aphasia with epilepsy [Landau-Kleffner] (G40.80-)
- selective mutism (F94.0)
- intellectual disabilities (F70-F79)
- pervasive developmental disorders (F84.-)
F80.2 Mixed receptive-expressive language disorder
- acquired aphasia with epilepsy [Landau-Kleffner] (G40.80-)
- pervasive developmental disorders (F84.-)
- selective mutism (F94.0)
- intellectual disabilities (F70-F79)
F81.2 Mathematics disorder
- arithmetical difficulties associated with a reading disorder (F81.0)
- arithmetical difficulties associated with a spelling disorder (F81.81)
- arithmetical difficulties due to inadequate teaching (Z55.8)
F82 Specific developmental disorder of motor function
- lack of coordination secondary to intellectual disabilities (F70-F79)
F90 Attention-deficit hyperactivity disorders applies to 5 codes
- anxiety disorders (F40.-, F41.-)
- mood [affective] disorders (F30-F39)
- pervasive developmental disorders (F84.-)
- schizophrenia (F20.-)
F91 Conduct disorders applies to 6 codes
- conduct problems associated with attention-deficit hyperactivity disorder (F90.-)
- mood [affective] disorders (F30-F39)
- pervasive developmental disorders (F84.-)
- schizophrenia (F20.-)
F93.0 Separation anxiety disorder of childhood
- mood [affective] disorders (F30-F39)
- nonpsychotic mental disorders (F40-F48)
- phobic anxiety disorder of childhood (F40.8)
- social phobia (F40.1)
F93.8 Other childhood emotional disorders
- gender identity disorder of childhood (F64.2)
F94.0 Selective mutism
- pervasive developmental disorders (F84.-)
- schizophrenia (F20.-)
- specific developmental disorders of speech and language (F80.-)
- transient mutism as part of separation anxiety in young children (F93.0)
F94.1 Reactive attachment disorder of childhood
- Asperger's syndrome (F84.5)
- maltreatment syndromes (T74.-)
- sexual or physical abuse in childhood, resulting in psychosocial problems (Z62.81-)
F94.2 Disinhibited attachment disorder of childhood
- Asperger's syndrome (F84.5)
- attention-deficit hyperactivity disorders (F90.-)
- hospitalism in children (F43.2-)
F98 Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence applies to 9 codes
- breath-holding spells (R06.89)
- gender identity disorder of childhood (F64.2)
- Kleine-Levin syndrome (G47.13)
- obsessive-compulsive disorder (F42.-)
- sleep disorders not due to a substance or known physiological condition (F51.-)
F98.2 Other feeding disorders of infancy and childhood applies to 2 codes
- anorexia nervosa and other eating disorders (F50.-)
- feeding difficulties (R63.3-)
- feeding problems of newborn (P92.-)
- pica of infancy or childhood (F98.3)
F98.4 Stereotyped movement disorders
- compulsions in obsessive-compulsive disorder (F42.-)
- hair plucking (F63.3)
- movement disorders of organic origin (G20-G25)
- nail-biting (F98.8)
- nose-picking (F98.8)
- stereotypies that are part of a broader psychiatric condition (F01-F95)
- thumb-sucking (F98.8)
- tic disorders (F95.-)
- trichotillomania (F63.3)

The first view lists notes printed in this chapter (a note on a category or block applies to every code beneath it). The second lists codes of this chapter named by Excludes2 Notes anywhere in the Tabular List, including notes in other chapters.

Questions About Excludes2 Notes

What does an Excludes2 note mean?

An Excludes2 note means “Not included here”: the excluded condition is not part of the condition represented by the code, but a patient may have both conditions at the same time (Section I.A.12.b). The FY 2027 Tabular List has 2,529 of them; 2,493 name other codes, with 2,799 references to 1,779 distinct codes, categories and ranges.

Can both codes be reported when there is an Excludes2 note?

Yes. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate: that is, when the patient has both conditions and both are documented.

Related References

ICD-10-CM Official Guidelines ICD-10-CM Code Lookup ICD-10-CM Codes List Code Lists by Tag

Source: FY 2027 ICD-10-CM Tabular List (CMS and NCHS) and the ICD-10-CM Official Guidelines for Coding and Reporting FY 2027, Section I.A. ICD List is not affiliated with CMS or NCHS.