Document Ontology Axes

  • Kind of Document - Characterizes the purpose or structure of the document, section, or entry.
  • Type of Service - Describes the healthcare service or action provided to/for the patient (or other subject of the service) as described in the note.
  • Setting - The healthcare environment or context in which the document was generated.
  • Subject Matter Domain - Characterizes the general focus or domain of knowledge represented within the content of the note. Typically values represent medical specialties but there is no requirement that the author have licensure or registration in that field.
  • Role - Characterizes the general function, responsibility, or capabilities of the author in relation to a document. The role category is a high-level classification that does not get as detailed as specialty or subspecialty so as to avoid potential overlap with the subject matter domain axis.

Regenstrief. (2025, November 14). Document Ontology. https://loinc.org/kb/users-guide/document-ontology/

Part Number Part Name Number of Codes
LP263512-8 Addiction medicine 27
LP172912-0 Addiction psychiatry 2
LP172915-3 Aerospace medicine 4
LP345051-9 Allergy 37
LP172918-7 Anesthesiology 28
LP172981-5 Pain medicine 36
LP248728-0 Sleep medicine 14
LP172919-5 Audiology 23
LP439903-8 Child life 2
LP172923-7 Chiropractic medicine 8
LP172933-6 Critical care medicine 27
LP172934-4 Dentistry 32
LP172935-1 Dermatology 33
LP172987-2 Pediatric dermatology 9
LP172940-1 Emergency medicine 24
LP172957-5 Medical toxicology 3
LP173027-6 Sports medicine 15
LP183499-5 Trauma 17
LP265794-0 Polytrauma 7
LP434807-6 Trauma Surgery 1
LP173035-9 Undersea and hyperbaric medicine 4
LP172942-7 Ethics 5
LP172943-5 Family medicine 17
LP172913-8 Adolescent medicine 14
LP172947-6 Geriatric medicine 50
LP248728-0 Sleep medicine 14
LP173027-6 Sports medicine 15
LP172894-0 Forensic medicine 2
LP172946-8 General medicine 33
LP433455-5 Hospitalist 11
LP431539-8 Hospice care 7
LP345043-6 Immunology 39
LP342846-5 Integrative medicine 9
LP172911-2 Acupuncture 3
LP172952-6 Internal medicine 35
LP172913-8 Adolescent medicine 14
LP172921-1 Cardiovascular disease 78
LP172927-8 Clinical cardiac electrophysiology 9
LP269425-7 Heart failure 22
LP172953-4 Interventional cardiology 12
LP269424-0 Transplant cardiology 11
LP172941-9 Endocrinology 27
LP172938-5 Diabetology 24
LP172945-0 Gastroenterology 35
LP172950-0 Hepatology 19
LP172947-6 Geriatric medicine 50
LP175685-9 Hematology 57
LP417851-5 Bone marrow transplant 7
LP172951-8 Infectious disease 30
LP183500-0 HIV 2
LP175686-7 Medical Oncology 38
LP172962-5 Nephrology 35
LP263511-0 Dialysis 16
LP418387-9 Therapeutic apheresis 6
LP173015-1 Pulmonary disease 52
LP173023-5 Rheumatology 26
LP248728-0 Sleep medicine 14
LP417852-3 Solid organ transplant 9
LP173027-6 Sports medicine 15
LP439901-2 Vascular Access 4
LP172956-7 Medical genetics 1
LP172926-0 Clinical biochemical genetics 2
LP172929-4 Clinical genetics 22
LP268361-5 Pharmacogenomics 7
LP172958-3 Mental health 88
LP345044-4 Eating disorders 7
LP173011-0 Psychiatry 49
LP172912-0 Addiction psychiatry 2
LP172922-9 Child and adolescent psychiatry 17
LP173012-8 Psychology 30
LP248501-1 Child and adolescent psychology 5
LP248729-8 Neuropsychology 7
LP172960-9 Multi-specialty program 29
LP345048-5 Aerodigestive medicine 2
LP263714-0 Brain injury 4
LP420041-8 Breastfeeding 9
LP345049-3 Cleft and Craniofacial 2
LP345044-4 Eating disorders 7
LP417672-5 Medical aid in dying 13
LP265794-0 Polytrauma 7
LP417852-3 Solid organ transplant 9
LP172897-3 Multidisciplinary 1
LP172963-3 Neurological surgery 35
LP345042-8 Spinal surgery 4
LP172964-1 Neurology 36
LP263714-0 Brain injury 4
LP172931-0 Clinical neurophysiology 8
LP248726-4 Epilepsy 2
LP172898-1 Neurology w special qualifications in child neuro 13
LP172981-5 Pain medicine 36
LP248728-0 Sleep medicine 14
LP173038-3 Vascular neurology 7
LP172968-2 Nuclear medicine 13
LP172899-9 Nutrition and dietetics 37
LP345044-4 Eating disorders 7
LP269243-4 Obesity medicine 7
LP172971-6 Obstetrics and gynecology 34
LP221284-5 Gynecology 37
LP202989-2 Gynecologic oncology 14
LP172955-9 Maternal and fetal medicine 15
LP221283-7 Obstetrics 42
LP173020-1 Reproductive endocrinology and infertility 14
LP172973-2 Occupational therapy 30
LP172901-3 Oncology 27
LP202989-2 Gynecologic oncology 14
LP175686-7 Medical Oncology 38
LP172991-4 Pediatric hematology-oncology 12
LP417851-5 Bone marrow transplant 7
LP173016-9 Radiation oncology 27
LP207940-0 Surgical oncology 16
LP172974-0 Ophthalmology 46
LP172975-7 Optometry 17
LP172902-1 Oral and maxillofacial surgery 24
LP434806-8 Orthopaedic surgery 37
LP345042-8 Spinal surgery 4
LP173029-2 Surgery of the hand 13
LP434870-4 Orthopaedic 1
LP172979-9 Orthotics prosthetics 12
LP434767-2 Osteopathic medicine 5
LP172980-7 Otolaryngology 32
LP172994-8 Pediatric otolaryngology 11
LP248728-0 Sleep medicine 14
LP172982-3 Palliative care 39
LP172983-1 Pastoral care 21
LP172984-9 Pathology 7
LP208907-8 Anatomic pathology
LP208906-0 Clinical pathology 12
LP172920-3 Blood banking and transfusion medicine 9
LP418387-9 Therapeutic apheresis 6
LP208902-9 Chemical pathology 1
LP208903-7 Medical microbiology - pathology 1
LP173002-9 Pediatrics 30
LP172913-8 Adolescent medicine 14
LP345048-5 Aerodigestive medicine 2
LP172922-9 Child and adolescent psychiatry 17
LP248501-1 Child and adolescent psychology 5
LP172937-7 Developmental-behavioral pediatrics 14
LP172950-0 Hepatology 19
LP172957-5 Medical toxicology 3
LP172961-7 Neonatal perinatal medicine 24
LP192135-4 Birth defects 2
LP172985-6 Pediatric cardiology 12
LP172986-4 Pediatric critical care medicine 1
LP172987-2 Pediatric dermatology 9
LP172989-8 Pediatric endocrinology 11
LP172990-6 Pediatric gastroenterology 11
LP173000-3 Pediatric transplant hepatology 12
LP172991-4 Pediatric hematology-oncology 12
LP417851-5 Bone marrow transplant 7
LP172992-2 Pediatric infectious diseases 9
LP172993-0 Pediatric nephrology 10
LP172994-8 Pediatric otolaryngology 11
LP172995-5 Pediatric pulmonology 13
LP172997-1 Pediatric rehabilitation medicine 1
LP172998-9 Pediatric rheumatology 10
LP172999-7 Pediatric surgery 21
LP248728-0 Sleep medicine 14
LP173027-6 Sports medicine 15
LP173003-7 Pharmacology 41
LP220238-2 Clinical pharmacology 2
LP268361-5 Pharmacogenomics 7
LP173004-5 Physical medicine and rehab 45
LP263714-0 Brain injury 4
LP172954-2 Kinesiotherapy 14
LP172981-5 Pain medicine 36
LP172997-1 Pediatric rehabilitation medicine 1
LP265794-0 Polytrauma 7
LP173026-8 Spinal cord injury medicine 29
LP173040-9 Vocational rehabilitation 11
LP173005-2 Physical therapy 40
LP173006-0 Plastic surgery 36
LP268363-1 Burn management 10
LP173029-2 Surgery of the hand 13
LP173008-6 Podiatry 31
LP433456-3 Chiropody 6
LP173009-4 Preventive medicine 10
LP172957-5 Medical toxicology 3
LP172972-4 Occupational medicine 10
LP173035-9 Undersea and hyperbaric medicine 4
LP173010-2 Primary care 47
LP448682-7 Preventive care 1
LP173014-4 Public health 6
LP204156-6 Community health care 18
LP267441-6 Environmental health 3
LP173018-5 Radiology 23
LP172896-5 Interventional radiology 16
LP173016-9 Radiation oncology 27
LP448142-2 Social Care 1
LP173019-3 Recreational therapy 25
LP173021-9 Research 13
LP173022-7 Respiratory therapy 24
LP173025-0 Speech-language pathology 28
LP173028-4 Surgery 64
LP248500-3 Bariatric surgery 12
LP268363-1 Burn management 10
LP172932-8 Colon and rectal surgery 24
LP172999-7 Pediatric surgery 21
LP173029-2 Surgery of the hand 13
LP173030-0 Surgical critical care 2
LP207940-0 Surgical oncology 16
LP173031-8 Thoracic and cardiac surgery 33
LP207300-7 Cardiac surgery 24
LP173033-4 Transplant surgery 25
LP417852-3 Solid organ transplant 9
LP183499-5 Trauma 17
LP265794-0 Polytrauma 7
LP434807-6 Trauma Surgery 1
LP173039-1 Vascular surgery 37
LP269976-9 Thromboembolism 9
LP173034-2 Tumor board 2
LP173036-7 Urology 39
LP173001-1 Pediatric urology 11
LP248732-2 Womens health 16
LP185997-6 Wound care management 16
LP268363-1 Burn management 10
LP412351-1 Wound, Ostomy, and Continence Care 12
LP439901-2 Vascular Access 4
LP448293-3 Rapid response 9
LP450620-2 Hemodynamic 1
Part Number Part Name Number of Codes
LP443176-5 Worker 1
LP269965-2 Attending 109
LP173067-2 Case manager 26
LP269966-0 Consultant 4
LP269967-8 Fellow 18
LP412180-4 Healthcare navigator 12
LP173071-4 Hygienist 1
LP173072-2 Interdisciplinary 33
LP173073-0 Team 69
LP203036-1 Rapid response.team
LP269968-6 Intern 3
LP221282-9 Midwife 6
LP173075-5 Nurse 207
LP173078-9 Clinical nurse specialist 3
LP173080-5 Nurse practitioner 46
LP173081-3 Licensed practical nurse 3
LP173082-1 Registered nurse 2
LP173083-9 Patient 24
LP181523-4 Pharmacist 7
LP173084-7 Physician 37
LP269965-2 Attending 109
LP269966-0 Consultant 4
LP269967-8 Fellow 18
LP269968-6 Intern 3
LP269969-4 Resident 44
LP173090-4 Physician assistant 17
LP269969-4 Resident 44
LP269801-9 Social worker 52
LP448143-0 Community Health Worker 1
LP173091-2 Student
LP173092-0 Medical student 21
LP173094-6 Technician 6
LP173095-3 Therapist 2
Part Number Part Name Number of Codes
LP173041-7 Ambulance 2
LP173043-3 Emergency department 54
LP173065-6 Hospital 344
LP173045-8 Intensive care unit 36
LP173046-6 Long term care facility 77
LP173047-4 Custodial care facility 28
LP173048-2 Nursing facility 6
LP173049-0 Skilled nursing facility 1
LP222061-6 Observation unit 9
LP173051-6 Outpatient 330
LP266261-9 Adult day care center 6
LP173054-0 Outpatient hospital 4
LP173055-7 Urgent care center 13
LP173056-5 Patient's home 68
LP220237-4 Pharmacy 1
LP248736-3 Recovery room 3
LP173058-1 Telehealth 104
LP248737-1 Teleimaging 3
LP173059-9 Telephone encounter 102
LP448145-5 Community Based Organization
Part Number Part Name Number of Codes
LP173099-5 Conference 38
LP173110-0 Consultation 257
LP173111-8 Confirmatory consultation 3
LP418143-6 COVID-19 26
LP173100-1 Counseling 22
LP173113-4 Group counseling 32
LP173112-6 Individual counseling 2
LP173114-2 Daily or end of shift signout 2
LP173115-9 Diagnostic study 68
LP173117-5 Education 97
LP173120-9 Discharge teaching 27
LP173122-5 Evaluation and management 1
LP173129-0 Care 1
LP437010-4 Goals, preferences, and priorities for care experience 1
LP310260-7 Care management 3
LP173130-8 Crisis intervention 3
LP263715-7 Suicide prevention 1
LP173131-6 Disease staging 2
LP173132-4 Disability examination 1
LP173134-0 Compensation and pension examination
LP173124-1 Evaluation 94
LP173123-3 Annual evaluation 14
LP173125-8 Functional status assessment 1
LP173198-5 History and physical 137
LP173200-9 Admission history and physical 38
LP173202-5 Labor and delivery admission history and physical 1
LP173201-7 Comprehensive history and physical 2
LP173203-3 Targeted history and physical 1
LP173204-1 Initial evaluation 123
LP173205-8 Admission evaluation 86
LP428833-0 Pain assessment 1
LP173126-6 Readiness for military duty assessment 2
LP270301-7 Reevaluation 1
LP173127-4 Risk assessment and screening 43
LP173128-2 Fall risk assessment 3
LP204157-4 Safety issue assessment 2
LP173192-8 Evaluation and management of a specific problem
LP173193-6 Evaluation and management of anticoagulation 6
LP173194-4 Evaluation and management of hyperlipidemia 3
LP173195-1 Evaluation and management of hypertension 3
LP267443-2 Evaluation and management of radiation exposure 2
LP173197-7 Evaluation and management of smoking cessation 5
LP208913-6 Evaluation and management of workers compensation 2
LP269262-4 Fluid management 2
LP204160-8 Medical equipment or product 4
LP173206-6 Plan 1
LP173209-0 Plan of care 117
LP173213-2 Progress 390
LP173211-6 Restraint 9
LP427038-7 Stroke prevention 1
LP173214-0 Surgical operation 51
LP173215-7 Postoperative evaluation and management 33
LP173216-5 Preoperative evaluation and management 71
LP173103-5 Summary 25
LP173218-1 Antepartum summary 1
LP173221-5 Discharge summary 153
LP222264-6 Immunization summary 1
LP173223-1 Labor and delivery summary 1
LP175732-9 Population summary 1
LP173225-6 Summary of death 3
LP200117-2 Summary of encounters 1
LP173224-9 Summary of episode 2
LP173226-4 Transfer summary 74
LP189614-3 Weight management summary 1
LP438240-6 Appointment summary
LP173227-2 Transplant candidate evaluation 8
LP173228-0 Transplant donor evaluation 1
LP173229-8 Well child visit 1
LP263510-2 Immunization 9
LP450643-4 Immunization reminder 1
LP204160-8 Medical equipment or product 4
LP173231-4 Medication management 52
LP207306-4 Medication administration 1
LP266264-3 Parenteral therapy 6
LP173232-2 Medication reconciliation 1
LP203673-1 Notification
LP203034-6 Admission notification 3
LP428837-1 Departure notification 1
LP203035-3 Discharge notification 3
LP204130-1 Visit notification 3
LP450482-7 Birth notification
LP173233-0 Outreach 3
LP173234-8 Procedure 145
LP267418-4 Cardiopulmonary resuscitation 3
LP269244-2 Conscious sedation procedure 1
LP410764-7 Emergency procedure 1
LP411573-1 Mechanical circulatory support 5
LP173235-5 Interventional procedure 3
LP418371-3 Intubation 11
LP173236-3 Pathology procedure
LP173237-1 Autopsy 1
LP421048-2 Quality
LP421047-4 Gaps in care 1
LP173238-9 Referral 90
LP173240-5 Respite 5
LP173104-3 Supervisory 5
LP173242-1 Triage 16
LP450622-8 Rehabilitation 3
Part Number Part Name Number of Codes
LP173387-4 Administrative note 26
LP447691-9 Administrative information 1
LP173388-2 Against medical advice note 1
LP173389-0 Agreement 4
LP412176-2 Controlled substance agreement 2
LP173390-8 Certificate 2
LP173391-6 Birth certificate 1
LP173392-4 Death certificate 1
LP173393-2 Evaluation of mental and physical incapacity certificate 1
LP267921-7 Proof of encounter certificate 1
LP450642-6 Fetal death certificate 1
LP450641-8 Recovery certificate 1
LP450640-0 Proof of medical test certificate 1
LP450638-4 Medical fitness certificate 2
LP450637-6 Temporary incapacity certificate 1
LP173394-0 Consent 4
LP173395-7 Abortion consent 1
LP436850-4 Organ &or tissue donation consent 1
LP173396-5 Anesthesia consent 1
LP267939-9 Blood or blood product transfusion consent 1
LP173397-3 Hysterectomy consent 1
LP267417-6 Long-term opioid therapy for pain consent 1
LP173398-1 Organ donation consent 1
LP173399-9 Procedure consent 1
LP173400-5 Release of information consent 1
LP416139-6 Research study consent 1
LP173401-3 Sterilization consent 1
LP173402-1 Surgical operation consent 1
LP193873-9 Driver license 2
LP173404-7 Health insurance card 1
LP173405-4 Health insurance-related form 1
LP173407-0 Legal document 1
LP200113-1 Legal letter 1
LP416137-0 Portable medical order form 1
LP173408-8 Power of attorney 2
LP248740-5 Medical clearance note 2
LP181089-6 Request 1
LP181085-4 Prescription request 1
LP173409-6 Advance directives 2
LP173410-4 Do not resuscitate 1
LP173412-0 Living will 3
LP446478-2 Advance healthcare directives 1
LP447690-1 Treatment intervention preferences 1
LP450636-8 Directive 1
LP200111-5 Checklist 24
LP267279-0 Discharge checklist 1
LP173414-6 Diagram 3
LP173415-3 Flowsheet 72
LP181112-6 Form 10
LP204180-6 Mandatory reporting form 3
LP416138-8 Medical history screening form 2
LP416137-0 Portable medical order form 1
LP181116-7 Instructions 2
LP181119-1 Action plan 2
LP173754-5 ADHD action plan 1
LP420133-3 Adrenal insufficiency emergency action plan 1
LP173755-2 Anaphylaxis action plan 1
LP173756-0 Asthma action plan 1
LP173757-8 Autism action plan 1
LP173758-6 Complex medical conditions action plan 1
LP173759-4 Cystic fibrosis action plan 1
LP173765-1 Diabetes type I action plan 1
LP173766-9 Diabetes type II action plan 1
LP173760-2 Heart disease action plan 1
LP173761-0 Inflammatory bowel disease action plan 1
LP173762-8 Multiple sclerosis action plan 1
LP173763-6 Muscular dystrophy action plan 1
LP173764-4 Seizure disorder action plan 1
LP173118-3 Discharge instructions 30
LP173417-9 Letter 62
LP200113-1 Legal letter 1
LP436846-2 End of treatment letter 1
LP448213-1 Screening reminder letter 1
LP448670-2 Implanted device
LP448685-0 Invitation letter 2
LP204161-6 List 2
LP181534-1 Prescription list 1
LP173418-7 Note 3,287
LP173419-5 Adverse event note 2
LP436851-2 Repository initial evaluation note 1
LP173420-3 Alert 6
LP434808-4 Appointment reminder 1
LP436847-0 Arrival notification note 1
LP436848-8 Comprehensive plan of care note 1
LP447692-7 Clinical note 1
LP448671-0 Screening invitation letter 1
LP450051-0 Implanted device note 1
LP181207-4 Order 1
LP416137-0 Portable medical order form 1
LP181204-1 Prescription
LP181529-1 Prescription for diagnostic or specialist care 1
LP181530-9 Prescription for durable medical equipment attachment 1
LP181190-2 Prescription for eyewear 1
LP181531-7 Prescription for medical equipment or product 1
LP181532-5 Prescription for medication 1
LP181533-3 Prescription for rehabilitation 1
LP181534-1 Prescription list 1
LP181231-4 Photographic image 4
LP173421-1 Report 10
LP183503-4 Case report 3
LP183502-6 Registry report 6
LP436849-6 Laboratory report 1
LP436982-5 Scanned Laboratory Result 1
LP450052-8 Domestic violence screening report 1
LP450608-7 Periodic personal health monitoring report 1
LP450644-2 Personal health monitoring report 2
LP450606-1 Record
LP439904-6 FHIR previous cancer therapy medical record
LP436981-7 FHIR resource patient medical record 1
LP449574-5 Child health surveillance 1
LP437011-2 Implant card 1
LP443264-9 Authenticity information 1
LP446479-0 Completion information 1
LP448453-3 Warranty Coverage Information 1
LP448629-8 Advanced explanation of benefits 1
LP448631-4 Good faith estimate 1