Data Models

Biograph contains 134 DocTypes across 15 functional domains. All support standard Frappe CRUD via /api/resource/{DocType}/{name}.

Type legend: Master (reference data), Document (transactional), Child (child table), Single (singleton config), Tree (hierarchical), Log (audit trail)

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Core Patient Management (10)

DocType	Type	Purpose
Patient	Master	Core patient record — demographics, history, linked user
Patient Relation	Child	Patient family/relation links (enables portal access for dependents)
Patient Medical Record	Log	Auto-generated timeline of all clinical events
Patient History Settings	Single	Configures which DocTypes appear in patient history
Patient History Standard Document Type	Child	Standard doc types in history
Patient History Custom Document Type	Child	Custom doc types in history
Patient Care Type	Master	Types of patient care
Patient Duplicate Check Rule Configuration	Single	Deduplication rules
Patient Duplicate Check Rule Link	Child	Rule links
Patient Duplicate Check Field	Child	Fields used for matching

Appointments & Scheduling (10)

DocType	Type	Purpose
Patient Appointment	Document	Core appointment record
Appointment Type	Master	Types (Walk-in, Online, Follow-up)
Appointment Type Service Item	Child	Billing items per type
Patient Appointment Therapy	Child	Therapy links
Practitioner Schedule	Master	Weekly time slot templates
Healthcare Schedule Time Slot	Child	Individual time slots
Practitioner Service Unit Schedule	Child	Practitioner-to-unit mapping
Practitioner Availability	Document	Date-specific availability overrides
Fee Validity	Document	Free follow-up windows
Fee Validity Reference	Child	Appointment references

Clinical / Encounters (11)

DocType	Type	Purpose
Patient Encounter	Document	Clinical consultation (core clinical document)
Patient Encounter Diagnosis	Child	Diagnoses recorded
Patient Encounter Symptom	Child	Symptoms/complaints
Drug Prescription	Child	Medications prescribed
Lab Prescription	Child	Lab tests ordered
Procedure Prescription	Child	Procedures ordered
Clinical Note	Child	SOAP-style clinical notes
Clinical Note Type	Master	Note categories
Doctor Advice Template	Master	Reusable advice text
Discharge Summary	Document	Discharge documentation
Vital Signs	Document	Vital sign recordings

Laboratory (18)

DocType	Type	Purpose
Lab Test	Document	Test order and results
Lab Test Template	Master	Test definitions
Lab Test Group Template	Child	Grouped test items
Lab Test Sample	Master	Sample type definitions
Lab Test UOM	Master	Units of measurement
Normal Test Result	Child	Numeric results
Normal Test Template	Child	Numeric test definitions
Descriptive Test Result	Child	Text-based results
Descriptive Test Template	Child	Text test definitions
Sample Collection	Document	Sample tracking
Sample Type	Master	Biological sample types
Specimen	Master	Specimen definitions
Sensitivity	Master	Antibiotic sensitivity vocab
Sensitivity Test Result	Child	Sensitivity results
Organism	Master	Organism vocab
Organism Test Item	Child	Organism entries
Organism Test Result	Child	Organism results
Antibiotic	Master	Antibiotic vocab

Observations & Diagnostics (6)

DocType	Type	Purpose
Observation	Document	Individual measurement/result (FHIR-aligned)
Observation Template	Master	Observation definitions with reference ranges
Observation Component	Child	Sub-observations in panels
Observation Reference Range	Child	Normal ranges by age/gender
Observation Sample Collection	Child	Sample links
Diagnostic Report	Document	Groups observations into a report

Clinical Procedures (3)

DocType	Type	Purpose
Clinical Procedure	Document	Procedure execution record
Clinical Procedure Template	Master	Procedure definitions
Clinical Procedure Item	Child	Consumable items

Medications & Prescriptions (16)

DocType	Type	Purpose
Medication	Master (Tree)	Drug definitions (hierarchical)
Medication Class	Master	Drug classification
Medication Class Interaction	Child	Class-level interactions
Medication Ingredient	Child	Active ingredients
Medication Linked Item	Child	Links to ERPNext stock items
Medication Request	Document	Prescription order (FHIR)
Medication History Item	Child	Patient medication history
Mediciation Override Reason Code	Master	Override reasons
Drug Interaction	Master	Drug-drug interactions
Drug Prescription	Child	Prescription entries
Lab Prescription	Child	Lab order entries
Procedure Prescription	Child	Procedure order entries
Dosage Form	Master	Forms (tablet, syrup, injection)
Dosage Strength	Child	Strength options
Prescription Dosage	Master	Frequency patterns (1-0-1)
Prescription Duration	Master	Duration options (5 days, 2 weeks)

Inpatient Management (11)

DocType	Type	Purpose
Inpatient Record	Document	Admission-to-discharge record
Inpatient Record Item	Child	Billable items
Inpatient Occupancy	Child	Bed occupancy tracking
Inpatient Medication Order	Document	IP medication orders
Inpatient Medication Order Entry	Child	Order entries
Inpatient Medication Entry	Document	Medication administration log
Inpatient Medication Entry Detail	Child	Administration details
Discharge Summary	Document	Discharge documentation
Nursing Task	Document	Nursing task tracking
Nursing Checklist Template	Master	Checklist templates
Nursing Checklist Template Task	Child	Checklist items

Therapy & Rehabilitation (16)

DocType	Type	Purpose
Therapy Type	Master	Therapy definitions
Therapy Plan	Document	Patient treatment plans
Therapy Plan Detail	Child	Plan items
Therapy Plan Template	Master	Reusable plan definitions
Therapy Plan Template Detail	Child	Template items
Therapy Session	Document	Individual session records
Exercise Type	Master	Exercise definitions
Exercise Type Step	Child	Exercise steps
Exercise	Child	Exercise entries in therapy types
Exercise Difficulty Level	Master	Difficulty levels
Patient Assessment	Document	Structured assessments
Patient Assessment Template	Master	Assessment form definitions
Patient Assessment Sheet	Child	Assessment sheets
Patient Assessment Detail	Child	Assessment items
Patient Assessment Parameter	Master	Assessment parameters
Body Part / Body Part Link	Master/Child	Anatomical reference

Insurance (8)

DocType	Type	Purpose
Insurance Payor	Master	Insurance company records
Insurance Payor Contract	Child	Contract terms
Insurance Payor Eligibility Plan	Child	Eligibility plans
Patient Insurance Policy	Document	Patient's insurance details
Patient Insurance Coverage	Document	Coverage determination
Item Insurance Eligibility	Child	Per-item eligibility
Insurance Claim	Document	Claim records
Insurance Claim Coverage	Child	Claim coverage details

Treatment & Packages (7)

DocType	Type	Purpose
Treatment Counselling	Document	Pre-admission counselling
Treatment Plan Template	Master	Treatment plan definitions
Treatment Plan Template Item	Child	Template items
Treatment Plan Template Practitioner	Child	Assigned practitioners
Healthcare Package	Master	Bundled service packages
Healthcare Package Item	Child	Package items
Package Subscription	Document	Patient subscriptions

Service Requests (4)

DocType	Type	Purpose
Service Request	Document	Generic service order (FHIR)
Service Request Category	Master	Request categories
Service Request Reason	Child	Order reasons
Doctor Advice Template	Master	Advice text templates

Coding & Classification (5)

DocType	Type	Purpose
Code System	Master	Coding systems (ICD-10, CPT, SNOMED, LOINC)
Code Value	Master	Individual codes
Code Value Set	Master	Grouped code sets
Codification Table	Child	Code links on templates
Medical Code	Master	Searchable codes

Infrastructure & Settings (10)

DocType	Type	Purpose
Healthcare Settings	Single	Global configuration
Healthcare Service Unit	Tree	Hospital hierarchy (building > floor > ward > bed)
Healthcare Service Unit Type	Master	Unit type definitions
Service Unit Type Item	Child	Billing items per type
Medical Department	Master	Clinical departments
Healthcare Practitioner	Master	Doctor/nurse/therapist records
Practitioner Service Unit Schedule	Child	Practitioner-unit mapping
Healthcare Activity	Log	Activity log
Healthcare Payment Record	Document	Portal payment tracking
Surgery History Item	Child	Surgical history entries

ABDM — India Regional (2)

DocType	Type	Purpose
ABDM Settings	Single	ABDM integration config
ABDM Request	Document	API request logs

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Entity Relationships

Patient ──────┬──→ Patient Appointment ──→ Patient Encounter
              │         │                       │
              │         ↓                       ├──→ Service Request ──→ Lab Test
              │    Fee Validity                 │                   ──→ Clinical Procedure
              │                                 │                   ──→ Observation
              │                                 ├──→ Medication Request
              │                                 └──→ Diagnosis / Symptoms
              │
              ├──→ Inpatient Record
              │         ├──→ IP Medication Order ──→ IP Medication Entry ──→ Stock Entry
              │         ├──→ Inpatient Occupancy (bed tracking)
              │         └──→ Discharge Summary
              │
              ├──→ Therapy Plan ──→ Therapy Session
              │
              ├──→ Insurance Policy ──→ Coverage ──→ Insurance Claim
              │
              ├──→ Sample Collection ──→ Observation ──→ Diagnostic Report
              │
              └──→ Patient Medical Record (auto-generated from all submitted docs)

Healthcare Practitioner ──→ Practitioner Schedule ──→ Time Slots
         │
         └──→ Healthcare Service Unit (tree: building > floor > ward > bed)

All billable services ──→ Sales Invoice (ERPNext) ──→ Payment Entry (ERPNext)