Step 1. Forseen readmissions

  • Material removal or replacement: 0122, 0129, 0207, 0243, 0295, 0394, 0398, 0493, 1192, 146, 1671, 1672, 3764, 3777, 3785-3789, 3797-3799, 3943, 4494, 5195, 5598, 5694, 5798, 6496, 6694, 6996, 7697, 786, 800, 8393, 8594, 8596, 9788 as readmission procedure
  • Temporary stoma closure: 3172, 3472, 4283, 4462, 4650-4652, 4872, 5192, 5582, 5683, 5782, 5842 as readmission procedure
  • Postoperative aftercare: Z42-Z48 as readmission diagnosis
  • Programmed surgical readmission after a surgical or obstetrical stay: main readmission diagnosis of the same system as at least one diagnosis of the previous stay
  • Programmed surgical readmission after a non-surgical/non-obstetrical stay: main readmission diagnosis of the same system as at least one diagnosis of the previous stay
  • Programmed non-surgical intervention after a non-surgical/non-obstetrical stay: main readmission diagnosis of the same system as at least one diagnosis of the previous stay and intervention performed during the two first days of readmission. Non-surgical interventions: 0058, 0059, 0068, 0069, 011, 0120, 0332, 0339, 041, 051, 0611-0613, 070, 0711-0717, 0751, 0771, 0791, 0811, 0911, 0912, 1021, 1121, 1122, 1222, 1411, 1501, 1623, 1812, 2032, 2122, 2211, 2212, 2411, 2412, 2501, 2502, 2612, 2721, 2722, 2723, 2724, 2811, 2912, 3143, 3144, 3145, 3324-3328, 3393, 3421-3428, 3721-3725, 3727-3729, 3821, 3823-3826, 3829, 4011, 4019, 411, 4131-4133, 4139, 4221, 4224, 4225, 4411, 4412, 4414, 4415, 4511, 4514, 4515, 4516, 4521, 4525-4527, 4821, 4824, 4825, 4826, 4922, 4923, 5011-014, 5112-5115, 5151, 5211, 5212, 5214, 5421-5425, 5524, 5632, 5633, 5634, 5733, 5734, 5823, 5824, 5921, 6011-6015, 6111, 6211, 6212, 6301, 6411, 6511-6514, 6611, 6711, 6712, 6813-6816, 7023, 7024, 7111, 7611, 774, 803, 8198, 8321, 8329, 8511, 8512, 8611, 884, 8851-8857, 8859.

Step 2. Iatrogenic complications (Exclusions criteria)

  • Material removal or replacement: Unplanned readmission or surgery complications (see step 6 below) for ungrouped cases, reason of readmission=complication (OFS variable 4.7.V03/V13/V23/V33=2) for grouped cases.
  • Temporary stoma closure: 3172, 3472, 4283, 4462, 4650-4652, 4872, 5192, 5582, 5683, 5782, 5842 as readmission procedure
  • Postoperative aftercare: Z42-Z48 as readmission diagnosis
  • Programmed surgical readmission after a surgical or obstetrical stay: main readmission diagnosis of the same system as at least one diagnosis of the previous stay or reopening of surgical site: 0070-0073, 0080-0084, 0123, 0242, 0302, 0397, 0475, 0602, 1152, 1266, 1267, 1283, 156, 1662-1664, 1666, 1921, 1929, 196, 2062, 2092, 2184, 2763, 3163, 3174, 3403, 3595, 3775, 3779, 3942, 3949, 445, 4496, 4640, 4641, 4643, 4693, 4694, 4975, 5194, 5412, 5461, 5492, 5652, 5662, 5672, 5722, 8153, 8155, 8159, 8197, 843, 8466, 8467, 8468, 8469, 8481, 8483, 8485, 8593, 8675 as readmission procedure.
  • Programmed surgical readmission after a non-surgical/non-obstetrical stay: None
  • Programmed non-surgical intervention after a non-surgical/non-obstetrical stay: Drug, radiation and insemination complications

Step 3. Deliveries and transplants 

  • Labor and deliveries: Obstetrical conditions as readmission diagnosis
  • Organ transplants: 0794, 335, 336, 3751, 4194, 4697, 505, 528, 556 as readmission procedure
  • Leucopherese, bone marrow grafts: 410, 9972-9974 as readmission procedure

Step 4. Chemo- and radiotherapy

  • Z510-Z512 as readmission diagnosis
  • 922 or 9925 as readmission procedure
  • D70 as readmission diagnosis (agranulocytosis) after chemotherapy

Step 5. Follow-up

  • Treatment follow-up: Z08, Z09 as readmission diagnosis
  • Rehabilitation: Z50 as readmission main diagnosis
  • Procedure not carried out: Z53 as any programmed readmission diagnosis

Step 6. Complications 

  • Iatrogenic complications: Following complications as readmission main diagnosis: surgical complications, health care complications, obstetrical complications, possible surgical complications or complication as reason of readmission.
  • Other health care complications: E86, I460, I461, I469, K316, K382, K603, K604, K632, K661, K823, K832, K833, K922, N321, N322, N82, O678, O679, O95, O960, O961, O969, O970, O971, O979, R048, R049, R570-R572, R578, R579, R58, R960, R961, R98, R99, T793.
  • Preventable disease (deep vein thrombosis, pulmonary embolism, decubitus ulcer): I260, I269, I801-I809, I820-I829, L89 as readmission main diagnosis.

Step 7. New medical condition

  • The readmission damaged system (determined by the main diagnosis) is not equal to any damaged system of the index hospitalisation (determined by all diagnoses of the previous stay). List of systems: blood, circulatory, cutaneous, digestive, endocrine, ENT, female, hepatic, locomotion, nervous, new-born, mental, ocular, respiratory, urinary.

Step 8. Trauma and diseases difficult to cure

  • Trauma: K131, L550-L552, L559, M125, M242-M244, M483, M626, M660-M665, M843, M992, S00-S99, T00-T35, T691, Z57, Z584, Z585 as unplanned readmission main diagnosis
  • Diseases difficult to cure: Idiopathic thrombocytopenic purpura, myelodysplastic syndrome, multiple sclerosis, cirrhosis of liver, urinary calculus, acute bronchiolitis of nurseling, non-surgical intestinal adhesion. D693, G35, J21 (< 2 years old), K700, K703, K717, K746, N20, N21, N220, N228, N23, R18, as readmission main diagnosis. D46, D570 as any readmission diagnosis with 9904 as readmission procedure (packed cell transfusion). D694-D696 as any readmission diagnosis with 9905 as readmission procedure (platelet transfusion). K565 or K660 main diagnostic codes for index non-surgical hospitalisation and the same main diagnostic codes for readmission (intestinal obstructions/adhesions relapses)