Birth event—type of anaesthesia administered, code N[N]

Identifying and definitional attributes

Metadata item type:Data Element
Short name:Type of anaesthesia administered during a birth event
METeOR identifier:732614
Registration status:Health, Standard 03/12/2020

The type of anaesthesia administered to a female during a birth event with instrumental or operative delivery, as represented by a code.

Data Element Concept:Birth event—type of anaesthesia administered

Value domain attributes

Representational attributes

Representation class:Code
Data type:Number
Maximum character length:2
Permissible values:
2Local anaesthetic to perineum
3Pudendal block
4Epidural or caudal block
5Spinal block
6General anaesthesia
7Combined spinal-epidural block
88Other anaesthesia
Supplementary values:
99Not stated/inadequately described

Collection and usage attributes

Guide for use:

CODE 7   Combined spinal-epidural block

The spinal-epidural block combines the benefits of rapid action of a spinal block and the flexibility of an epidural block. An epidural catheter inserted during the technique enables the provision of long-lasting analgesia with the ability to titrate the dose for the desired effect.

CODE 88   Other anaesthesia

May include parenteral opioids and nitrous oxide.


Code 1 (None) has been omitted as it is no longer in use. For information about its meaning in previous data elements, see superseded versions.

Data element attributes

Collection and usage attributes

Guide for use:

More than one permissible value may be recorded.

CODE 7   Combined spinal-epidural block

Combined spinal-epidural block should not be recorded if both Code 4 and Code 5 are also recorded.


Anaesthetic use may affect the health status of the baby and is an indicator of obstetric intervention.

Source and reference attributes

Submitting organisation:

National Perinatal Data Development Committee

Relational attributes

Related metadata references:

See also Birth event—anaesthesia administered indicator, yes/no/not stated/inadequately described code N Health, Standard 03/12/2020

Supersedes Birth event—type of anaesthesia administered, code N[N] Health, Superseded 03/12/2020

Implementation in Data Set Specifications:

Perinatal NMDS 2021–22 Health, Standard 03/12/2020

DSS specific attributes +