Schema reference / Tables / view MDX source

body_surface_area

The measured or calculated surface area of a human body.

Purpose. To record the measured or calculated surface area of a human body.

Source

Model	Leg	Role
`openEHR-EHR-OBSERVATION.body_surface_area.v1`	openEHR	defines this table

Columns

Column	Type	Null	Description	Source
`id`	`uuid primary key`	no	Primary key.	—
`form_id`	`uuid` → `form`	no	The form this entry was recorded on.	—
`form_block_id`	`uuid`	yes	The block within the form, when the entry is bound to one.	—
`body_surface_area_magnitude` `body_surface_area_units`	quantity `numeric`, `text`	yes	Body Surface Area	`/data[at0001]/events[at0002]/data[at0003]/items[at0004]`
`comment`	`text`	yes	Comment	`/data[at0001]/events[at0002]/data[at0003]/items[at0019]`
`confounding_factors`	`text`	yes	Confounding factors	`/data[at0001]/events[at0002]/state[at0020]/items[at0021]`
`method` `method_code` `method_system` `method_valueset_id`	coded text `text`, `text`, `text`, `text`	yes	Method	`/protocol[at0005]/items[at0009]`
`formula` `formula_code` `formula_system` `formula_valueset_id`	coded text `text`, `text`, `text`, `text`	yes	Formula	`/protocol[at0005]/items[at0006]`

Constraints

check ((body_surface_area_magnitude is null and body_surface_area_units is null) or (body_surface_area_magnitude is not null and body_surface_area_units is not null))
check (body_surface_area_magnitude is null or (body_surface_area_units = 'm2' and body_surface_area_magnitude >= 0))
check ((method_code is null and method_system is null and method_valueset_id is null and method is null) or (method is not null and method_code is not null and method_system is not null and method_valueset_id is not null))
check ((formula_code is null and formula_system is null and formula_valueset_id is null) or (formula is not null and formula_code is not null and formula_system is not null and formula_valueset_id is not null))

Unique

form_block_id

References

Columns	Target	On delete
`form_id`	`form`	cascade
`form_id, form_block_id`	`form_block`	cascade
`method_valueset_id, method_code, method_system, method`	`valueset_code`	restrict
`formula_valueset_id, formula_code, formula_system, formula`	`valueset_code`	restrict

Referenced by

body_surface_area_device via body_surface_area_id

Indexes

body_surface_area_form_id_idx on form_id

Child tables

1 table hang off body_surface_area, one row per repetition.

`body_surface_area_device`

Child table — one row per repetition, deleted with its parent.

Column	Type	Null	Description	Source
`id`	`uuid primary key`	no	Primary key.	—
`body_surface_area_id`	`uuid` → `body_surface_area`	no	—	—
`position`	`integer`	no	Order of this row within its parent, from zero.	—
`device_id`	`uuid`	no	Device	`/protocol[at0005]/items[at0008]`

Unique

body_surface_area_id, position
body_surface_area_id, device_id

References

Columns	Target	On delete
`body_surface_area_id`	`body_surface_area`	cascade
`device_id`	`device`	no action

Indexes

body_surface_area_device_device_id_idx on device_id

Value sets

Value set	Codes
`org.openehr::openEHR-EHR-OBSERVATION.body_surface_area.v1/formula`	7
`org.openehr::openEHR-EHR-OBSERVATION.body_surface_area.v1/method`	2