EVENTS APPENDIX 2

       

           Mortality coding for the Longitudinal Study, first decade

 

       

                      Cause of death coding, 8th revision

       

The underlying cause of death was assigned according to the 8th

Revision of the International Classification of Diseases (ICD) using

the coding rules as set out in Volume 1 of that Classification.  The

range of codes = 000 - E999.

       

Certain modifications were made to the ICD categories, as follows:

       

412  - According to ICD8, Volume 1, category 412 should take 4th

       digits 0 or 9.

       

       The 4th digits actually used were 1, 2, 3, 4 (see attached

       list A).

       

519  - According to ICD8, Volume 1, category 519 should take 4th

       digits 1, 2 and 9.

       

     The 4th digits actually used were 1, 2, 7, 8, 9.  Digits 1,

     2 and 9 were used according to ICD.  Digits 7 and 8 were

     applied to separate "Obstructive airways disease" from the

     other chronic and obstructive respiratory disease:-

       

5197 (Chronic) obstructive lung disease                            

     (Chronic) obstructive pulmonary disease

     Chronic (non-specific) lung disease

     Chronic (non-specific) pulmonary disease

       

5198 (Chronic) obstructive airways disease

     Airways obstruction

       

N800-N959 - No 4th digits were used for these categories

       

Multiple cause coding was effected by using ICD codes as above plus

OPCS generated codes identifiable by a preceding left-hand bracket

(see List B).  These are known as the "bracket codes" and were used

to amplify ICD codes where applicable, always following the ICD codes

to which they relate.

       

ICD codes could also be used as amplifiers within a bracket.

       

 

                        Stillbirth coding, 8th revision

 

The underlying cause was taken from Chapters XIV and XV of the ICD

(740-779).  The leading '7' common to all these categories was omitted

leaving a 3 character code to which was added a 4th digit as follows:-

       

     0 Multiple birth )

     1 Others         ) Not immature or post mature

 

     2 Multiple birth                        )

     3 Statement of immaturity of prematurity)

     4 Weight 2495 grams or less             )

     5 Gestation period of less than 37 weeks) Immature

 

     6 Statement of post-maturity            )

     7 Gestation period 42 weeks or over     )

     8 Weight 4082 grams or over             ) Post mature

 

There was one modification to ICD8 used in stillbirth coding only -

       

        773  - 4th digits were applied to this category

 

        7730 - abortion

 

        7731 - any other condition

 

Multicause in stillbirth coding was effected by using codes from

Chapters XIV and XV of the ICD but, additionally, any ICD code could

be used within a bracket.

       

OPCS generated codes were also used within a bracket from a list

especially compiled for stillbirths (see List C).

 

 

                 Special codes for multiple cause coding (ICD8)

 

                                     LIST A

 

4121      Chronic ischaemic heart disease with       )

          or without cardiovascular disease in 4122. )

 

          Accept any condition in 4123               ) with a

                                                       hypertensive

                                                       condition

4122      Cardiovascular disease without mention     ) in 400-404 

          of chronic ischaemic heart disease in 4121.)

       

               Accept any condition in 4124          )

       

       

       

4123      Chronic ischaemic heart disease with       )

          or without cardiovascular disease in 4124  )

       

          Aneurysm of heart                          )

          Arteriosclerotic heart (disease)           )

          Arteriosclerotic myocarditis               )

          Coronary (artery):                         )

            arteriosclerosis                         )

            atheroma                                 )

            disease                                  )

            sclerosis                                )

            stricture                                )

          Healed myocardial infarct                  ) without 

          Ischaemic heart disease                    ) mention of

          Ischaemic degeneration, heart or myocardium) hyper-

          Postayocardial infarct syndrome            ) tensive

          Any condition in 410 specified as chronic  ) disease

          or with a stated duration of over 8 weeks  )

       

4124      Cardiovascular disease without mention of  )

          chronic ischaemic heart disease in 4123.   )

       

          Cardiovascular (arteriosclerotic)          )

            accident                                 )

            arteriosclerosis                         )

            changes                                  )

            degeneration                             )

            disease                                  )

            insufficiency                            )

            sclerosis                                )

            stenosis                                 )

 

 

 

                 Special codes for multiple cause coding (ICD8)

       

                                     LIST B

            

These are not 'ICD' codes and must only be used as an adjectival or

qualifying code, ie with a preceding bracket.  When used it must

follow the normal ICD code to which it relates.

       

       

0112  Tuberculosis nos

0113  Tuberculosis, stated as active

0278  Pasteurella infection nos

 

0280  Staphylococcal infection

   1  Streptococcal infection

   2  Escherichia (or bacillus) coli infection

   3  Proteus (vulgaris) (mirabilis) (morgani) infection

   4  Friedlander's bacillus infection

   5  Pneumococcal (or diplococcus pneumoniae) infection

   6  Heamophilus (or H) influenzae infection

 

0690  Adenovirus infection

   1  Enterovirus infection

   2  ECHO virus infection

   3  Para-influenza virus infection                        

   4  Respiratory syncytial virus infection                 

                                                            

1360  Infection or infectious nos                           

   9  Remainder of 136                                      

                                                            

1370  Mycoplasma (or Eaton's agent, or pleuropneumonia - like 

      organism) infection                                   

   1  Protozoal infection nos                               

   2  Trichomonal infection                                 

                                                            

2388  Space-occupying or intracranial tumor or lesion       

                                                            

2790  Metabolic                                             

   1  Dietetic                                              

   9  Remainder of 279                                      

                                                            

3590  CNS involvement nos                                   

                                                            

4408  Arteriosclerotic (not generalised) - use only for split term

 

4588  Haemorrhage                                           

                                                            

4860  Lobar pneumonia, not pneumococcal - use only as amplifying

              information                                          

  

   9  Remainder of 486                                      

                                                            

5780  Gastro-intestinal                                     

                                                             

5800  Acute renal failure (so described)                    

   9  Remainder of 580                                      

 

 

6347  Pregnancy                                             

                                                             

6424  Soap embolism (in abortion)                           

                                                            

6778  Puerperium                                            

7238  Pathological fracture                                 

                                                            

7784  Childbirth or labour - relating to foetus of newborn  

                                                            

7838  Respiratory failure                                   

                                                            

7950  Sudden death (cause unknown) as in 795                

   1  Atrophy                                               

   2  Compression                                            

   3  Cyst (or Cystic)                                      

   4  Dilatation                                            

   5  Fibrosis                                              

   6  Hypertrophy                                            

   7  Inflammation                                          

   8  Insufficiency                                         

   9  Purulent                                              

                                                             

7964  Chronic invalid                                       

   5  Suppuration                                           

   6  Stenosis                                              

   7  Fistula                                                

   8  Surgical operation                                    

                                                            

7970  Rupture                                               

   1  Pereforation                                           

   2  Puncture                                              

   3  Penetration                                           

   4  Invasion                                              

   5  Obstruction                                            

   6  Stricture                                             

   7  Contracture                                           

   8  Occlusion                                             

   9  Torsion                                                

                                                            

7980  Dislocation                                           

   1  Prolapse                                              

   2  Displacement                                           

   3  Detachment                                            

   4  Adhesion                                              

   5  Incompetence                                          

   6  Necrosis                                               

   7  Late effect                                           

   8  Decompensation                                        

   9  Regurgitation                                         

                                                             

7990  Septic                                                

   1  Pyogenic                                              

   2  Allergic                                              

   3  Abscess                                               

   4  Ulceration                                            

   5  Toxic                                                 

   6  Calculus or calculous                                 

   7  Cirrhosis                                             

   8  Failure                                               

 

E8681 Poisoning by cheese

    9 Remainder of E868

 

E9090 Confinement to bed

    1 Post-traumatic or old traumatic

    9 Remainder of E909

N862

N8690 Without mention of open wound into captivity

    1 With open wound into captivity

    2 Aortic rupture

    3 Injury to oesophagus

    4 Crushed chest

    5 Traumatic asphyxia

    6 Open intra thoracic wound

    9 Late effect

 

N9090 Open                         )

    1 Compound                     )

    2 Infected                     )

    3 Missile                      ) Fractures, Wounds

    4 Puncture, stab or penetrating) Dislocations, etc.

    5 Foreign body in              )

    6 Delayed healing              )

    7 Tendon involvement           )

    8 Non union                    )

    9 Malunion                     )

 

N9883 Toxic effect of cheese

 

N9915 Hypothermia

 

 

                 Multi-cause codes for stillbirths only (ICD8)

     

                                     LIST C

 

Code Disease or Condition

 

7993 Abscess

0690 Adenovirus infection

7984 Adhesion

7587 Agenesis

7992 Allergic

7586 Atresia

7951 Atrophy

 

0282 Bacillus coli infection

 

7996 Calculus or calculous

7999 Cigarette smoking

7997 Cirrhosis

7800 Coma

7952 Compression

7977 Contracture

7953 Cyst (or cystic)

3590 CNS "involvement" NOS

 

7988 Decompensation

7983 Detachment

2791 Dietetic

7954 Dilation

0285 Diplococcus, pneumoniae infection

4124 Disease, cardiovascular

4122 Disease, cardiovascular with hypertensive disease

4123 Disease heart, ischaemic, chronic

4121 Disease heart, ischaemic, chronic with hypertensive disease

7980 Dislocation

7982 Displacement

 

7826 Edema

0692 ECHO virus infection

0691 Enterovirus infection

0282 Escherichia coli infection (bacillus)

 

7998 Failure

7955 Fibrosis

7967 Fistula

7802 Fit

0284 Friedlanders bacillus infection

 

5780 Gastro-intestinal

 

4588 Haemorrhage

0286 Haemophilus (or H) influenzae infection

7956 Hypertrophy - not with hyperplasia

7585 Hypoplasia

 

9915 Hypothermia

 

7985 Incompetence

1360 Infection or infectious NOS

1369 Infective and parasitic diseases, other and unspecified

7957 Inflammation

7958 Insuffiency - not with hearts, heads

6348 Intra-uterine contraceptive device in situ

7964 Invalid -chronic

3590 "Involvement" CNS NOS

 

7784 Labour

 

2790 Metabolic

2799 Metabolic diseases, other and unspecified

1370 Mycoplasma (or Eaton's agent, or pleuro pneumonia - like

     organism infection)

 

7986 Necrosis

5809 Nephritis acute (Remainder of 580)

 

7975 Obstruction

7978 Occlusion - not coronary, hearts or heads

7826 Oedema

7968 Operation, surgical

 

0693 Para-influenzal virus infection

0278 Pasteurella infection NOS

7973 Penetration

7971 Perforation

0285 Pneumococcal infection (or diplococcus pneumoniae)

4860 Pneumonia, lobar - not pneumococcal - use only as qualifying

     information

4869 Pneumonia, unspecified (remainder of 486)

7696 Previous pregnancy, consequence of

7981 Prolapse

0283 Proteus (vulgaris) (mirabilis) (morgani) infection

1371 Protozoal infection NOS

7959 Purulent

7991 Pyogenic

0113 Pulmonary tuberculosis stated as active

 

7989 Regurgitation

5800 Renal failure, acute (so described)

0694 Respiratory syncytial virus infection

0560 Rubella

0561 Rubella contact

0562 Rubella immunization

0563 Rubella congenital

7970 Rupture

7648 Ruptured caesarian section scar

 

7990 Septic

2388 Space occupying lesion (or "intracranial" lesion)

2388 Space occupying tumour (or "intracranial" tumour)

0280 Staphylococcal infection

7966 Stenosis

0281 Streptococcal infection

7976 Stricture

7965 Suppuration

 

7979 Torsion

7995 Toxic

1372 Trichomonal infection

0112 Tuberculosis NOS

7706 Twin to twin transfusion syndrome

 

7994 Ulceration

 

7707 Velamentous insertion of cord

9949 Want/lack of attention at birth

        

 

 

18 September 1991

<APP2.EVE>