Table 5 Outlier maps arranged in the decreasing order of the \(Z(\alpha )\) scores. As before, m is the number of candidate codes in a map whereas v is the number of valid representations in a map
From: Entropic measures of complexity in a new medical coding system
| Map | Map description | m | v | \({Z(\alpha )}\) |
|---|---|---|---|---|
| 3929 | Other (peripheral) vascular shunt or bypass | 1191 | 1191 | 4.87 |
| 8605 | Incision with removal of foreign body or device from skin and subcutaneous tissue | 415 | 415 | 4.06 |
| 8609 | Other incision of skin and subcutaneous tissue | 335 | 335 | 4.00 |
| 3950 | Angioplasty of other non-coronary vessel(s) | 1196 | 1196 | 3.68 |
| 0109 | Other cranial puncture | 34 | 34 | 3.68 |
| 843 | Revision of amputation stump | 349 | 349 | 3.60 |
| 9301 | Functional evaluation | 148 | 148 | 3.57 |
| 0404 | Other incision of cranial and peripheral nerves | 327 | 327 | 3.47 |
| 9788 | Removal of external immobilization device | 98 | 98 | 3.42 |
| 3979 | Other endovascular procedures on other vessels | 689 | 689 | 3.41 |
| 9223 | Radioisotopic teleradiotherapy | 768 | 768 | 3.38 |
| 046 | Transposition of cranial and peripheral nerves | 378 | 378 | 3.37 |
| 8382 | Graft of muscle or fascia | 440 | 440 | 3.35 |
| 0124 | Other craniotomy | 111 | 111 | 3.29 |
| 3926 | Other intra-abdominal vascular shunt or bypass | 720 | 720 | 3.29 |
| 409 | Other operations on lymphatic structures | 510 | 510 | 3.27 |
| 8196 | Other repair of joint | 313 | 313 | 3.26 |
| 9227 | Implantation or insertion of radioactive elements | 268 | 268 | 3.21 |
| 3897 | Central venous catheter placement with guidance | 48 | 320 | 3.15 |
| 0474 | Other anastomosis of cranial or peripheral nerve | 350 | 350 | 3.15 |
| 3821 | Biopsy of blood vessel | 699 | 699 | 3.08 |
| 8120 | Arthrodesis of unspecified joint | 582 | 582 | 3.06 |
| 3958 | Repair of blood vessel with unspecified type of patch graft | 421 | 421 | 3.05 |
| 8604 | Other incision with drainage of skin and subcutaneous tissue | 281 | 281 | 3.01 |
| 3348 | other repair and plastic operations on bronchus | 288 | 288 | 3.00 |
| 8129 | Arthrodesis of other specified joints | 552 | 552 | 3.00 |
| 2103 | Control of epistaxis by cauterization (and packing) | 10 | 8 | 3.00 |
| 9649 | Other genitourinary instillation | 5 | 5 | 2.97 |
| 3956 | Repair of blood vessel with tissue patch graft | 402 | 402 | 2.95 |
| 8100 | Spinal fusion, not otherwise specified | 282 | 282 | 2.88 |
| 8683 | Size reduction plastic operation | 340 | 340 | 2.84 |
| 9205 | Cardiovascular and hematopoietic scan and radioisotope function study | 54 | 54 | 2.83 |
| 0309 | Other exploration and decompression of spinal canal | 70 | 70 | 2.78 |
| 8080 | Other local excision or destruction of lesion of joint, unspecified site | 345 | 345 | 2.77 |
| 8040 | Division of joint capsule, ligament, or cartilage, unspecified site | 210 | 210 | 2.74 |
| 3925 | Aorta-iliac-femoral bypass | 320 | 320 | 2.73 |
| 3805 | Incision of vessel, other thoracic vessels | 78 | 78 | 2.71 |