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Definition

Unplanned and unexpected hospital readmissions within 28 days for selected surgical procedures.

Indicator Summary

Numerator

Number of separations for public hospitals which meet all of the following criteria:

  • The separation is a readmission to the same hospital following a separation in which one of the following procedures was performed: knee replacement; hip replacement; tonsillectomy and adenoidectomy; hysterectomy; prostatectomy; cataract surgery; appendicectomy (see procedure codes in computation description field)
  • The readmission occurs within 28 days of the previous date of separation
  • A principal diagnosis for the readmission has one of the following ICD10-AM codes: T80–88, T98.3, E89, G97, H59, H95, I97, J95, K91, M96 or N99
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Denominator
Number of separations in which one of the following surgical procedures was undertaken: knee replacement; hip replacement; tonsillectomy and adenoidectomy; hysterectomy; prostatectomy; cataract surgery; appendicectomy.
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Computation

Unplanned/unexpected readmissions are those readmissions where the principal diagnosis indicates an adverse event.

Principal diagnoses codes

A principal diagnosis for the readmission has one of the following ICD-10-AM (6th Ed) codes: T80–88, T98.3, E89, G97, H59, H95, I97, J95, K91, M96 or N99.

T80 Complications following infusion, transfusion and therapeutic injection

T81 Complications of procedures, not elsewhere classified

T82 Complications …

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Disaggregation

2009–10—Nationally, by specified procedures by SEIFA Index of Relative Socioeconomic Disadvantage (IRSD) deciles

2009–10—State and territory, by specified procedures, by:

  • peer group
  • Indigenous status
  • remoteness (Australian Standard Geographical Classification Remoteness Structure)
  • SEIFA IRSD quintiles

Some disaggregations may result in numbers too small for publication. National disaggregation by Indigenous status will be based on data only from jurisdictions for which the quality of Indigenous identification is considered acceptable.

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Calculation rules

Computation Rule
Description

Unplanned/unexpected readmissions are those readmissions where the principal diagnosis indicates an adverse event.

Principal diagnoses codes

A principal diagnosis for the readmission has one of the following ICD-10-AM (6th Ed) codes: T80–88, T98.3, E89, G97, H59, H95, I97, J95, K91, M96 or N99.

T80 Complications following infusion, transfusion and therapeutic injection

T81 Complications of procedures, not elsewhere classified

T82 Complications of cardiac and vascular prosthetic devices, implants and grafts

T83 Complications of genitourinary prosthetic devices, implants and grafts

T84 Complications of internal orthopaedic prosthetic devices, implants and grafts

T85 Complications of other internal prosthetic devices, implants and grafts

T86 Failure and rejection of transplanted organs and tissues

T87 Complications peculiar to reattachment and amputation

T88 Other complications of surgical and medical care, not elsewhere classified

T98.3 Sequelae of complications of surgical and medical care, not elsewhere classified

E89 Postprocedural endocrine and metabolic disorders, not elsewhere classified

G97 Postprocedural disorders of nervous system, not elsewhere classified

H59 Postprocedural disorders of eye and adnexa, not elsewhere classified

H95 Postprocedural disorders of ear and mastoid process, not elsewhere classified

I97 Postprocedural disorders of circulatory system, not elsewhere classified

J95 Postprocedural respiratory disorders, not elsewhere classified

K91 Postprocedural disorders of digestive system, not elsewhere classified

M96 Postprocedural musculoskeletal disorders, not elsewhere classified

N99 Postprocedural disorders of genitourinary system, not elsewhere classified

Procedure codes

Number of separations in which one of the following surgical procedures was undertaken: knee replacement; hip replacement; tonsillectomy and adenoidectomy; hysterectomy; prostatectomy; cataract surgery; appendicectomy.

The following is a list of the specific ACHI (6th Ed) procedure codes which are included in the specifications for each of the selected surgical procedures.

Procedure

Procedure Codes

Description

Knee replacement

49518-00

Total arthroplasty of knee, unilateral

49519-00

Total arthroplasty of knee, bilateral

49521-02

Total arthroplasty of knee with bone graft to tibia, unilateral

Hip replacement

49318-00

Total arthroplasty of hip, unilateral

49319-00

Total arthroplasty of hip, bilateral

Tonsillectomy and adenoidectomy

41789-00

Tonsillectomy without adenoidectomy

41789-01

Tonsillectomy with adenoidectomy

41801-00

Adenoidectomy without tonsillectomy

Hysterectomy

35653-01

Total abdominal hysterectomy

35653-04

Total abdominal hysterectomy with removal of adnexa

35661-00

Abdominal hysterectomy with extensive retroperitoneal dissection

35670-00

Abdominal hysterectomy with radical excision of pelvic lymph nodes

35756-00

Laparoscopically assisted vaginal hysterectomy proceeding to abdominal hysterectomy

35756-03

Laparoscopically assisted vaginal hysterectomy proceeding to abdominal hysterectomy with removal of adnexa

90448-01 Total laparoscopic abdominal hysterectomy

90448-02

Total laparoscopic abdominal hysterectomy with removal of adnexa

35657-00

Vaginal hysterectomy

35673-02 Vaginal hysterectomy with removal of adnexa

35667-00

Radical abdominal hysterectomy

35664-00

Radical abdominal hysterectomy with radical excision of pelvic lymph nodes

35664-01

Radical vaginal hysterectomy with radical excision of pelvic lymph nodes

35667-01

Radical vaginal hysterectomy

90443-00

Other excision of uterus

Prostatectomy

37207-00

Endoscopic laser ablation of prostate (includes TULIP)

37201-00

Transurethral needle ablation of prostate

37203-00

Transurethral resection of prostate

37203-02

Transurethral electrical vaporisation of prostate

37203-04

Microwave thermotherapy of prostate

37203-05

High intensity focussed ultrasound (transrectal) of prostate

37207-01

Endoscopic laser excision of prostate

37200-03

Suprapubic prostatectomy

37200-04

Retropubic prostatectomy

37224-00

Endoscopic destruction of prostatic lesion

37224-01

Endoscopic resection of prostatic lesion

90407-00

Excision of other lesion of prostate

37203-03

Cryoablation of prostate

Cataract surgery

42698-00

Intracapsular extraction of crystalline lens

42702-00

Intracapsular extraction of crystalline lens with insertion of foldable artificial lens

42702-01

Intracapsular extraction of crystalline lens with insertion of other artificial lens

42698-01

Extracapsular extraction of crystalline lens by simple aspiration (and irrigation) technique

42702-02

Extracapsular extraction of crystalline lens by simple aspiration (and irrigation) technique with insertion of foldable artificial lens

42702-03

Extracapsular extraction of crystalline lens by simple aspiration (and irrigation) technique with insertion of other artificial lens

42698-02

Extracapsular extraction of crystalline lens by phacoemulsification and aspiration of cataract

42702-04

Extracapsular extraction of crystalline lens by phacoemulsification and aspiration of cataract with insertion of foldable artificial lens

42702-05

Extracapsular extraction of crystalline lens by phacoemulsification and aspiration of cataract with insertion of other artificial lens

42698-03

Extracapsular crystalline lens extraction by mechanical phacofragmentation and aspiration of cataract

42702-06

Extracapsular crystalline lens extraction by mechanical phacofragmentation and aspiration of cataract with insertion of foldable artificial lens

42702-07

Extracapsular crystalline lens extraction by mechanical phacofragmentation and aspiration of cataract with insertion of other artificial lens

42698-04

Other extracapsular extraction of crystalline lens

42702-08

Other extracapsular extraction of crystalline lens with insertion of foldable artificial lens

42702-09

Other extracapsular extraction of crystalline lens with insertion of other artificial lens

42731-01

Extraction of crystalline lens by posterior chamber sclerotomy with removal of vitreous

42698-05

Other extraction of crystalline lens

42702-10

Other extraction of crystalline lens with insertion of foldable artificial lens

42702-11

Other extraction of crystalline lens with insertion of other artificial lens

Appendicectomy

30571-00

Appendicectomy

30572-00

Laparoscopic appendicectomy

Limited to public hospitals.

Denominator limited to separations with a separation date between 1 July and 19 May in the reference year.

Denominator excludes separations where the patient died in hospital.

Analysis by state and territory is based on location of service.

Analysis by remoteness and SEIFA Index of Relative Socioeconomic Disadvantage (IRSD) is based on usual residence of person.

Presented per 1,000 separations.

Numerators

Number of separations for public hospitals which meet all of the following criteria:

  • The separation is a readmission to the same hospital following a separation in which one of the following procedures was performed: knee replacement; hip replacement; tonsillectomy and adenoidectomy; hysterectomy; prostatectomy; cataract surgery; appendicectomy (see procedure codes in computation description field)
  • The readmission occurs within 28 days of the previous date of separation
  • A principal diagnosis for the readmission has one of the following ICD10-AM codes: T80–88, T98.3, E89, G97, H59, H95, I97, J95, K91, M96 or N99
Denominators
Number of separations in which one of the following surgical procedures was undertaken: knee replacement; hip replacement; tonsillectomy and adenoidectomy; hysterectomy; prostatectomy; cataract surgery; appendicectomy.
Disaggregation

2009–10—Nationally, by specified procedures by SEIFA Index of Relative Socioeconomic Disadvantage (IRSD) deciles

2009–10—State and territory, by specified procedures, by:

  • peer group
  • Indigenous status
  • remoteness (Australian Standard Geographical Classification Remoteness Structure)
  • SEIFA IRSD quintiles

Some disaggregations may result in numbers too small for publication. National disaggregation by Indigenous status will be based on data only from jurisdictions for which the quality of Indigenous identification is considered acceptable.

References

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Relation Count
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