Table 4 Procedures with the highest numbers of claims and claims rates for 1997–2004 (from the 500 most frequently performed operations in the study period)
Surgical procedureClaimsPaid claimsDischargesClaims rate (%)Pay rate (%)Rate, paid claims (%)
Procedures with the highest number of claims 1997–2004
    NFB49: primary total prosthetic replacement of hip joint using cement636488791090.80770.62
    NGB49: primary total prosthetic replacement of knee joint using cement339266427010.79780.62
    LCD00: hysterectomy296196454350.65660.43
    JKA21: laparoscopic cholecystectomy253188624860.40740.30
    MCA10: lower uterine segment caesarean section2191411070450.20640.13
    JKA20: cholecystectomy14592270580.54630.34
    FNA00: anastomosis to coronary artery from internal mammary artery13946461930.30330.10
    JAH01: laparoscopy13194422520.31720.22
    JAB30: repair of inguinal hernia using prosthetic material11449263950.43430.19
    JEA00: appendectomy11140818920.14360.05
Procedures with the highest claims rates 1997–2004
    NGK59: angulation, rotation or displacement osteotomy of knee or lower leg645033111.93781.51
    NHK59: angulation, rotation or displacement osteotomy of ankle or foot; other or unspecified472926841.75621.08
    ACC51: decompression and freeing of adhesions of peripheral nerve; median543534611.56651.01
    JDF10: gastric bypass27619651.37220.31
    NFB39: primary total prosthetic replacement of hip joint using hybrid technique654949061.32751.00
    JBC00: gastro-oesophageal antireflux operation211116101.30520.68
    ABC10: microsurgical excision of cervical intervertebral disc displacement201115921.26550.69
    ABC26: open discectomy of lumbar spine1047588291.18720.85
    BAA50: lobectomy and resection of contralateral lobe of thyroid gland271623231.16590.69
    NFB29: primary total prosthetic replacement of hip joint not using cement352730251.16770.89