Description:
-	Syndromes that have a clinically significant disturbance in an individual’s cognition, emotional regulation, or behavior that is reflected by psychological, biological, or developmental processes underlying mental and behavioral functioning, typically associated with impairment or distress. 

Excluded from This List:
-	Acute Stress Reaction
-	Uncomplicated Bereavement 

Conditions Listed Elsewhere: 
-	Sleep-Wake Disorders
-	Sexual Dysfunctions
-	Gender Incongruence


The ICD-11 is broken down into 28 chapters that include:
1.	Certain Infectious or Parasitic Diseases
2.	Neoplasms
3.	Diseases of the Blood or Blood-Forming Organs
4.	Diseases of the Immune System
5.	Endocrine, Nutritional, or Metabolic Diseases
6.	Mental, Behavioral, or Neurodevelopmental Disorders
7.	Sleep-Wake Disorders
8.	Diseases of the Nervous System
9.	Diseases of the Visual System
10.	Diseases of the Ear or Mastoid Process
11.	Diseases of the Circulatory System
12.	Diseases of the Respiratory System
13.	Diseases of the Digestive System
14.	Diseases of the Skin
15.	Diseases of the Musculoskeletal System or Connective Tissue
16.	Diseases of the Genitourinary System
17.	Conditions Related to Sexual Health
18.	Pregnancy, Childbirth, or the Puerperium
19.	Certain Conditions Originating in the Prenatal Period
20.	Developmental Anomalies
21.	Symptoms, Signs, or Clinical Findings, Not Elsewhere Classified
22.	Injury, Poisoning, or Certain Other Consequences of External Causes
23.	External Causes of Morbidity or Mortality
24.	Factors Influencing Health Status or Contact with Health Services
25.	Codes for Special Purposes
26.	Supplementary Chapter Traditional Medicine Conditions – Module I
27.  V Supplementary Section for Functioning Assessment
28.  X  Extension Codes


ICD-11 Chapters

Due to a variety of factors, such as increased societal attention to mental disorders, cultural and societal interpretations, inconsistencies in diagnosis criteria, continuing research on mental disorders, and others, categorizing mental disorders is not always consistent. Depending on the source used, certain diagnoses or disorders may be categorized differently due to the criteria or metrics used in those categorical schemes. Listed below are different categorization schemes for mental disorders (some official and some colloquial). 
- [DSM-5-TR] Section II: Diagnostic Criteria and Codes
- [ICD-11] Chapter 6:  Mental, Behavioral, or Neurodevelopmental Disorders
- General Categories of Mental Disorders


Categorizing Mental Disorders 

World Health Organization (2019). International Statistical Classification of Diseases and Related Health Problems (11th ed.). https://icd.who.int/


International Classification of Diseases - 11th Ed.

Description:
-	Certain conditions caused by pathogenic organisms or microorganisms, such as bacteria, viruses, parasites, or fungi.

Excluded from This List:
- 	Infections Arising from a Device, Implant, or Graft That is Not Elsewhere Classified

Conditions Listed Elsewhere:
- 	Infections of the Fetus or Newborn
-	Human Prion Disease
-	Pneumonia


[ICD-11] 1. Certain Infectious or Parasitic Diseases

Description:
-	Abnormal or uncontrolled rapid cellular growth that is not typical for an organism’s requirements for normal tissue growth, replacement, or repair.

Excluded from This List:
-	N/A

Conditions Listed Elsewhere:
-	Inherited Cancer-Predisposing Syndromes


[ICD-11] 2. Neoplasms

Description:
-	Conditions that result from diseases of the blood or blood-forming organs.

Excluded from This List:
-	Complications of Pregnancy, Childbirth or the Puerperium
-	Diseases of the Immune System
-	Certain Conditions Originating in the Perinatal Period
-	Injury, Poisoning, or Certain Other Consequences of External Causes
-	Human Immunodeficiency Virus Disease (HIV)
-	Endocrine, Nutritional, or Metabolic Diseases
-	Congenital Malformations, Deformations, or Chromosomal Abnormalities 
-	Other Diseases of the Blood or Blood-Forming Organs or Certain Disorders Involving the Immune Mechanism Complicating Pregnancy, Childbirth, or the Puerperium

Conditions Listed Elsewhere:
-	Neoplasms of Haematopoietic or Lymphoid Tissues
-	Symptoms, Signs, or Clinical Findings of Blood, Blood-Forming Organs, or the Immune System 


[ICD-11] 3. Diseases of the Blood or Blood-Forming Organs

Description:
-	Conditions that result from diseases of the immune system.

Excluded from This List:
-	Complications of Pregnancy, Childbirth, and the Puerperium
-	Neoplasms
-	Developmental Anomalies

Conditions Listed Elsewhere: 
-	Organ Specific Autoimmune Disorders
-	Symptoms, Signs, or Clinical Findings of Blood, Blood-Forming Organs, or the Immune System


[ICD-11] 4. Diseases of the Immune System

Description:
-	Conditions that result from endocrine diseases, nutritional diseases, and/or metabolic diseases.

Excluded from This List:
-	Transitory Endocrine or Metabolic Disorders Specific to Fetus or Newborn
-	Pregnancy, Childbirth, or the Puerperium

Conditions Listed Elsewhere: 
-	Symptoms, Signs, or Clinical Findings of Endocrine, Nutritional, or Metabolic Diseases
-	Endocrine, Nutritional, or Metabolic Diseases Complicating Pregnancy, Childbirth, or the Puerperium


[ICD-11] 5. Endocrine, Nutritional, or Metabolic Diseases

[ICD-11] 6. Mental, Behavioral, or Neurodevelopmental Disorders

Description:
-	Conditions characterized by difficulties related to the sleep process and/or schedule in the periods before sleep, during sleep, and awaking from sleep. 

Excluded from This List:
-	N/A

Conditions Listed Elsewhere: 
-	N/A

[ICD-11] 7. Sleep-Wake Disorders

Description:
-	Conditions that are present in or associated with the nervous system. 

Excluded from This List:
-	Endocrine, Nutritional, or Metabolic Diseases
-	Complications of Pregnancy, Childbirth, and the Puerperium
-	Certain Conditions Originating in the Perinatal Period
-	Injury, Poisoning, or Certain Other Consequences of External Causes

Conditions Listed Elsewhere: 
-	Injuries of the Nervous System
-	Neoplasms of the Nervous System
-	Structural Developmental Anomalies of the Nervous System
-	Syndromes with Central Nervous System Anomalies as a Major Feature
-	Non-viral and Unspecified Infections of the Central Nervous System
-	Symptom, Signs, or Clinical Findings of the Nervous System
-	Paralytic Symptoms
-	Dissociative Neurological Symptom Disorder
-	Diseases of the Nervous System Complicating Pregnancy, Childbirth, or the Puerperium


[ICD-11] 8. Diseases of the Nervous System

Description:
-	Conditions that result from diseases of the visual system, including the eyes and adnexa, as well as disease that affect the visual pathways and brain areas that initiate and control visual perception and visually guided behavior.

Excluded from This List:
-	Certain Conditions Originating in the Perinatal Period
-	Certain Infectious of Parasitic Diseases
-	Complications of Pregnancy, Childbirth, and the Puerperium
-	Endocrine, Nutritional, or Metabolic Diseases
-	Injury, Poisoning, or Certain Other Consequences of External Causes
-	Posterior Cortical Atrophy

Conditions Listed Elsewhere: 
-	Neoplasms of the Eye or Ocular Adnexa
-	Reasons for Contact with the Health Care System in Relation to Eyes or Vision
-	Contusion of Eyeball or Orbital Tissues
-	Foreign Body in Multiple Parts of the External Eye
-	Oculocutaneous Albinism
-	Traumatic Injury to Eyeball
-	Birth Injury to Eye
-	Late Congenital Syphilitic Oculopathy
-	Symptoms, Signs, or Clinical Findings of the Visual System
-	Structural Developmental Anomalies of the Eye, Eyelid, or Lacrimal Apparatus


[ICD-11] 9. Diseases of the Visual System

Description:
-	Conditions that result from diseases of the ear and/or the mastoid process.
 
Excluded from This List:
-	Complications of Pregnancy, Childbirth, and the Puerperium
-	Certain Infectious or Parasitic Diseases
-	Certain Conditions Originating in the Perinatal Period
-	Injury, Poisoning, or Certain Other Consequences of External Causes 
-	Neoplasms
-	Endocrine, Nutritional, or Metabolic Diseases

Conditions Listed Elsewhere: 
-	Structural Developmental Anomalies of the Ear
-	Symptoms, Signs, or Clinical Findings of Ear or Mastoid Process


[ICD-11] 10. Diseases of the Ear or Mastoid Process

Description:
-	Conditions that result from diseases of the circulatory system or the organ system responsible for passing nutrients, gases, hormones, blood cells, etc. to and from other cells in the body for the purposes of fighting disease, stabilizing body temperature and pH, and maintaining homeostasis.
 
Excluded from This List:
-	Certain Infectious of Parasitic Diseases
-	Certain Conditions Originating in the Perinatal Period
-	Congenital Malformations, Deformations, and Chromosomal Abnormalities
-	Complications of Pregnancy, Childbirth, and the Puerperium
-	Injury, Poisoning, or Certain Other Consequences of External Causes
-	Endocrine, Nutritional, or Metabolic Diseases

Conditions Listed Elsewhere: 
-	Neoplasms of the Circulatory System 
-	Developmental Anomalies of the Circulatory System
-	Infections of the Circulatory System
-	Symptoms, Signs, or Clinical Findings of the Circulatory System
-	Cerebrovascular Diseases
-	Functional Vascular Disorders of the Skin
-	Diseases of the Circulatory System Complicating Pregnancy, Childbirth, or the Puerperium


[ICD-11] 11. Diseases of the Circulatory System

Description:
-	Conditions that result from diseases of the respiratory system.

Excluded from This List:
-	Endocrine, Nutritional, or Metabolic Diseases
-	Congenital Malformations, Deformations, and Chromosomal Abnormalities
-	Injury, Poisoning, or Certain Other Consequences of External Causes
-	Certain Conditions Originating in the Perinatal Period
-	Certain Infectious of Parasitic Diseases
-	Complications of Pregnancy, Childbirth, and the Puerperium

Conditions Listed Elsewhere: 
-	Neoplasms of the Respiratory System
-	Developmental Respiratory Diseases
-	Symptoms, Signs, or Clinical Findings of the Respiratory System
-	Pulmonary Heart Disease or Diseases of Pulmonary Circulation
-	Sleep-Related Breathing Disorders
-	Diseases of the Respiratory System Complicating Pregnancy, Childbirth, or the Puerperium


[ICD-11] 12. Diseases of the Respiratory System

Description:
-	Conditions that result from diseases of the digestive system.

Excluded from This List:
-	Endocrine, Nutritional, or Metabolic Diseases
-	Injury, Poisoning, or Certain Other Consequences of External Causes
-	Neoplasms
-	Certain Infectious or Parasitic Diseases
-	Complication of Pregnancy, Childbirth, and the Puerperium
-	Mental, Behavioral, or Neurodevelopmental Disorders

Conditions Listed Elsewhere: 
-	Digestive System Disorders of Fetus or Newborn
-	Symptoms, Signs, or Clinical Findings of the Digestive System or Abdomen
-	Structural Developmental Anomalies of the Digestive Tract
-	Diseases of the Digestive System Complicating Pregnancy, Childbirth, or the Puerperium 


[ICD-11] 13. Diseases of the Digestive System

Description:
-	Conditions that result from diseases affecting different aspects of the skin, including: the epidermis, its appendages (e.g., hair follicles, sweat glands, nails) and associated mucous membranes (e.g., conjunctival, oral, genital) as well as the dermis, cutaneous vasculature, and the subcutaneous tissue. 

Excluded from This List:
-	N/A

Conditions Listed Elsewhere: 
-	Malignant Neoplasms Involving the Skin
-	Haematoma of Surgical Wound of Skin
-	Superficial Incision Site Infection
-	Neonatal Phototherapy Burn
-	Symptoms or Signs Involving the Skin          


[ICD-11] 14. Diseases of the Skin

Description:
-	Conditions that result from diseases of the musculoskeletal system and/or connective tissue. 

Excluded from This List:
-	Injury, Poisoning, or Certain Other Consequences of External Causes
-	Endocrine, Nutritional, or Metabolic Diseases
-	Complications of Pregnancy, Childbirth, and the Puerperium
-	Certain Infectious of Parasitic Diseases
-	Temporomandibular Joint Disorders
-	Certain Conditions Originating in the Perinatal Period

Conditions Listed Elsewhere: 
-	Neoplasms of the Musculoskeletal System
-	Monogenic Autoinflammatory Syndromes
-	Non-Organ Specific Systemic Autoimmune Disorders
-	Symptoms, Signs, or Clinical Findings of the Musculoskeletal System
-	Structural Developmental Anomalies of the Skeleton
-	Syndromes with Connective Tissues Involvement as a Major Feature
-	Syndromes with Skeletal Anomalies as a Major Feature


[ICD-11] 15. Diseases of the Musculoskeletal System or Connective Tissue

Description:
-	Conditions that result from diseases with a pathological change to the genitourinary system. 

Excluded from This List:
-	Injury, Poisoning, or Certain Other Consequences of External Causes
-	Endocrine, Nutritional, or Metabolic Diseases
-	Complications of Pregnancy, Childbirth, and the Puerperium
-	Certain Infectious or Parasitic Diseases

Conditions Listed Elsewhere: 
-	Contact with Health Services for Reasons Associated with Reproduction
-	Predominantly Sexually Transmitted Infections
-	Symptoms, Signs, or Clinical Findings of the Genitourinary System
-	Female Gonococcal Pelvic Inflammatory Disease 


[ICD-11] 16. Diseases of the Genitourinary System

Description:
-	Conditions that are related to sexual health.

Excluded from This List:
-	N/A

Conditions Listed Elsewhere: 
-	Changes in Female Genital Anatomy
-	Changes in Male Genital Anatomy
-	Paraphilic Disorders
-	Andrenogenital Disorders
-	Predominantly Sexually Transmitted Infections
-	Contact with Health Services for Contraceptive Management


[ICD-11] 17. Conditions Related to Sexual Health

Description:
-	Conditions that are grouped as occurring during the time between conception and delivery (Pregnancy), labor and delivery (childbirth), or the six-week period after giving birth during which the uterus returns to the original size (puerperium). 

Excluded from This List:
-	Postpartum Necrosis of Pituitary Gland
-	Obstetrical Tetanus
-	Injury, Poisoning, or Certain Other Consequences of External Causes

Conditions Listed Elsewhere: 
-	Gestational Trophoblastic Diseases
-	Contact with Health Services for Reasons Associated with Reproduction


[ICD-11] 18. Pregnancy, Childbirth or the Puerperium

Description:
-	Conditions that originate from issues during the perinatal period even though symptoms, consequences, and/or mortality may manifest later. 

Excluded from This List:
-	Endocrine, Nutritional, or Metabolic Diseases
-	Congenital Malformations, Deformations, and Chromosomal Abnormalities
-	Neoplasms
-	Injury, Poisoning, or Certain Other Consequences of External Causes
-	Congenital Gonococcal Infection
-	Certain Infectious or Parasitic Diseases – Acquired After Birth
-	Gastroenteritis or Colitis of Infectious Origin
-	Hereditary Haemolytic Anaemia 
-	Transient Hypogammaglobulinaemia of Infancy
-	Certain Congenital Diseases of the Nervous System
-	Congenital Cardiomyopathy
-	Paralytic Ileus
-	Pemphigus Neonatorum
-	Cradle Cap

Conditions Listed Elsewhere: 
-	N/A


[ICD-11] 19. Certain Conditions Originating in the Perinatal Period

Description:
-	Conditions that result from the failure of a particular body site or body system to develop correctly during the antenatal period.

Excluded from This List:
-	Inborn Errors of Metabolism

Conditions Listed Elsewhere: 
-	N/A


[ICD-11] 20. Developmental Anomalies

Description:
-	Clinical findings that are found using physical, laboratory, and imaging techniques. As diseases can manifest in each individual differently, these findings focus more on being able to resolve or treat the issue, with less importance placed on identifying or addressing underlying conditions. This includes conditions without specified diagnostic criteria that could be designated as ‘Not Otherwise Specified’, ‘Unknown Etiology’, or ‘Transient’. 

Conditions, Signs, or Symptoms Specifically Included in This List:
-	Cases for which no more specific diagnosis can be made even after all facts on the case have been investigated.
-	Signs or symptoms existing at the time of initial encounter that proved to be transient and whose cause could not be determined. 
-	Provisional diagnoses in a patient who failed to return for further investigative care,
-	Cases referred elsewhere for investigation or treatment before the diagnosis was made.
-	Cases in which a more precises diagnosis was not available for any other reason.
-	Certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right. 

Excluded from This List:
-	Certain Conditions Originating in the Perinatal Period
-	Clinical Findings on Antenatal Screening of Mother

Conditions Listed Elsewhere: 
-	N/A


[ICD-11] 21. Symptoms, Signs, or Clinical Findings, Not Elsewhere Classified

Description:
-	Injuries are from physical or physiological bodily harm that results from interaction of the body with energy (mechanical, thermal, electrical, chemical, radiant, or pressure) in an amount or rate of transfer that exceeds physical or physiological tolerance. Injuries also include situations that result from lack of vital elements (oxygen), poisoning by toxic effects of substances, and damage due to an implanted device. 
-	Injuries typically have a rapid onset resulting from an injury occurring event. These can originate externally, from the person or their immediate environment, or are self-inflected.

Excluded from This List:
-	Stress Fracture, Not Elsewhere Classified
-	Pathological Fracture
-	Certain Specified Obstetric Trauma
-	Malunion of Fracture
-	Birth Injury
-	Nonunion of Fracture

Conditions Listed Elsewhere: 
-	N/A


[ICD-11] 22. Injury, Poisoning, or Certain Other Consequences of External Causes

Description:
-	Injuries that are categorized by the determination of whether the injuries were deliberately inflicted and by whom, for the purposes of identifying intervention opportunities.

Categories of Determination Include:
-	Unintentional (Accidental)
-	Intentional (Deliberate)
-	Interpersonal (Assault, Homicide)
-	Self-Harm (Substance Abuse, Self-Mutilation, Suicide)
-	Legal Intervention (Action by Police or Other Law Enforcement)
-	War, Civil Insurrection, and Disturbances (Demonstrations, Riots)
-	Undetermined Intent

Excluded from This List:
-	N/A

Conditions Listed Elsewhere: 
-	N/A


[ICD-11] 23. External Causes of Morbidity or Mortality

Description:
-	Occasions when circumstances other than a disease, injury, or external cause is recorded as a diagnosis or a problem. This may include encounters with health services for purposes such as receiving limited care or service for a current condition, to donate organs or tissues, to receive prophylactic vaccinations, or to discuss a problem that is not a disease, injury, or external cause. Additionally, situations in which a person’s health is influenced by circumstantial factors not directly related to a disease, injury, or external cause which may or may not result in the person being sick or requiring care are also included. 

Excluded from This List:
-	N/A

Conditions Listed Elsewhere: 
-	N/A


[ICD-11] 24. Factors Influencing Health Status or Contact with Health Services

Description:
-	Codes that are used to identify conditions for the purposes of intervention or treatment of an individual in either unknown or emergency cases despite there being a lack specific information regarding the underlying causes. 

Excluded from This List:
-	N/A

Conditions Listed Elsewhere: 
-	N/A



[ICD-11] 25. Codes for Special Purposes

Description:
-	Codes that are used to identify cases in which an individual, regardless of reason, may be diagnosed according to Traditional Medicine (TM) standards. These codes help to correlate conditions and symptoms across the ICD standard and Traditional Medicine standard to allow for consistent understanding. 


Excluded from This List:
-	N/A

Conditions Listed Elsewhere: 
-	N/A


[ICD-11] 26. Supplementary Chapter Traditional Medicine Conditions – Module I

Description:
-	This section includes supplementary tools used to describe or inform the functioning of an individual for the purposes of identifying clinically defined impairments or disabling factors of certain conditions. 

Excluded from This List:
-	N/A

Concepts Listed Elsewhere: 
-	N/A


[ICD-11] V. Supplementary Section for Functioning Assessment

Description:
-	Additional codes used to supplement a primary code/diagnosis to identify more detail regarding the individual case (e.g., temporality, etiology, anatomical identifiers, traces of substances, and others). These are not to be used by themselves for primary coding but may be used individually in other contexts. 

Excluded from This List:
-	N/A

Codes Listed Elsewhere: 
-	Extension Codes of Particular Relevance to Skin Diseases


[ICD-11] X. Extension Codes

Section II of the DSM-5-TR covers the bulk of the manual by including the descriptive text and criteria for each diagnosis. This section also references relevant context and research for the diagnoses and other conditions, medication-related adverse effects and -induced disorders, and corresponding ICD-10 codes. This section is broken down into the following chapters: 

-	Neurodevelopmental Disorders
-	Schizophrenia Spectrum and Other Psychotic Disorders
-	Bipolar and Related Disorders
-	Depressive Disorders
-	Anxiety Disorders
-	Obsessive-Compulsive and Related Disorders
-	Trauma- and Stressor-Related Disorders
-	Dissociative Disorders
-	Somatic Symptom and Related Disorders
-	Feeding and Eating Disorders
-	Elimination Disorders
-	Sleep-Wake Disorders
-	Sexual Dysfunctions
-	Gender Dysphoria 
-	Disruptive, Impulse-Control, and Conduct Disorders
-	Substance-Related and Addictive Disorders
-	Neurocognitive Disorders
-	Personality Disorders
-	Paraphilic Disorder
-	Other Mental Disorders and Additional Codes
-	Medication-Induced Movement Disorders and Other Adverse Effects of Medication
-	Other Conditions that May Be a Focus of Clinical Attention


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