New York State Guidelines for Determining Permanent ...

New York State Guidelines for Determining Permanent Impairment and

Loss of Wage Earning Capacity

December 2012

NYS Guidelines for Determining Permanent Impairment and Loss of Wage Earning Capacity

Table of Contents

Foreword........................................................................................................................................................................ 7

Chapter 1: Introduction..................................................................................................................................................8 1.1. Types of Disability under the Workers' Compensation Law..................................................................................8 1.2. Maximum Medical Improvement (MMI) ...............................................................................................................8 1.3. Role of Examining Health Providers ......................................................................................................................9 1.4. Types of Final Evaluation Examination................................................................................................................10 1.5. Schedule Awards .................................................................................................................................................. 10 1.6. Non-schedule Awards (Classification) .................................................................................................................10 1.7. Abbreviation Codes ..............................................................................................................................................11

Chapter 2: Upper Extremities ...................................................................................................................................... 12 2.1. Thumb...................................................................................................................................................................12 2.2. Fingers .................................................................................................................................................................. 15 2.3. Wrist .....................................................................................................................................................................19 2.4. Elbow....................................................................................................................................................................22 2.5. Shoulder Joint.......................................................................................................................................................23

Chapter 3: Lower Extremities...................................................................................................................................... 25 3.1. Hip ........................................................................................................................................................................ 25 3.2. Knee......................................................................................................................................................................26 3.3. Ankle and Foot ..................................................................................................................................................... 29 3.4. Great Toe .............................................................................................................................................................. 32 3.5. Smaller Toes (Second, Third, Fourth & Fifth)......................................................................................................32

Chapter 4: Nervous System ......................................................................................................................................... 33 4.1. Central Nervous System ? Cranial Nerves ...........................................................................................................33 4.2. Peripheral Nervous System...................................................................................................................................34 4.3: Entrapment Neuropathies .....................................................................................................................................35

Chapter 5: Visual System ............................................................................................................................................ 38 5.1 : Introduction .......................................................................................................................................................... 38 5.2 : Criteria and Methods for Evaluating Permanent Impairment ...............................................................................38

Chapter 6: Loss of Hearing .......................................................................................................................................... 41 6.1. Occupational Loss of Hearing ..............................................................................................................................41 6.2. Traumatic Loss of Hearing ...................................................................................................................................41

Chapter 7: Facial Scars and Disfigurement ................................................................................................................. 42

Chapter 8: Weeks by Percentage Loss of Use of Body Part......................................................................................... 43

Chapter 9: Non-schedule Awards ................................................................................................................................ 44 9.1 Introduction to Non-schedule Awards ...................................................................................................................44 9.2 Medical Impairment and Functional Assessment Guidelines ................................................................................44 9.3 Loss of Wage Earning Capacity (Degree of Disability).........................................................................................47

Chapter 10: Medical Impairment General Principles ? Non-schedule ........................................................................ 50

Chapter 11: Spine and Pelvis ....................................................................................................................................... 51 11.1 : Soft Tissue Spine Conditions..............................................................................................................................51 11.2 : Vertebral Fractures ............................................................................................................................................. 55 11.3 : Supplementary Tables: Radiculopathy Criteria ..................................................................................................65 11.4 : Spinal Cord Injury ..............................................................................................................................................72 11.5 : Pelvis ..................................................................................................................................................................78

Chapter 12: Respiratory ............................................................................................................................................... 82 12.1 : Pneumoconioses and other Occupational Respiratory Diseases (other than Asthma) ........................................82 12.2 : Asthma................................................................................................................................................................87 12.3 : Lung Cancer ....................................................................................................................................................... 92

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NYS Guidelines for Determining Permanent Impairment and Loss of Wage Earning Capacity 12.4 : Respiratory Test Standards .................................................................................................................................93 Chapter 13: Cardiovascular ....................................................................................................................................... 105 Chapter 14: Skin ........................................................................................................................................................ 106 Chapter 15: Brain....................................................................................................................................................... 107 Chapter 16: Pain ........................................................................................................................................................ 111 Chapter 17: Other Injuries and Occupational Diseases (Default Guideline) ............................................................. 118 Chapter 18: Medical Impairment Severity Crosswalk ............................................................................................... 120 Chapter 19: Glossary ................................................................................................................................................. 122

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NYS Guidelines for Determining Permanent Impairment and Loss of Wage Earning Capacity

Tables

Chapter 2: Upper Extremities

Table 2.1. Percent Loss of Use of the Thumb: Flexion and Extension.........................................................................12 Table 2.2: Percent Loss of Use of the Thumb: Thumb Ankylosis or Loss of Active Flexion ......................................12 Table 2.3: Percent Loss of Use of the Fingers (Index, Middle, Ring, Small): Mobility Defects ..................................15 Table 2.4: Percent Loss of the Use of the Hand: Amputation of Two or More Fingers at Different Levels.................18 Table 2.5: Palmar Flexion (80-90 degrees average).....................................................................................................19 Table 2.6: Dorsiflexion (70 degree range) ...................................................................................................................19 Table 2.7: Percent Loss of Use of the Hand: Defects of Pronation or Supination(180 degree) ...................................20 Table 2.8: Percent Loss of Use of the Arm: Amputation at Different Levels...............................................................22 Table 2.9: Percent Loss of Use of the Arm: Extension Defects of the Elbow ..............................................................22 Table 2.10: Percent Loss of Use of the Arm: Flexion Defects of the Elbow................................................................22 Table 2.11: Percent Loss of Use of the Arm: Anterior Flexion Defects of the Shoulder..............................................23 Chapter 3: Lower Extremities Table 3.1: Percent Loss of Use of the Leg: Anterior Flexion Defects of the Hip .........................................................25 Table 3.2: Percent Loss of Use of the Leg: Flexion Defects of the Knee .....................................................................27 Table 3.3: Percent Loss of Use ofthe Foot ..................................................................................................................29 Table 3.4: Percent Loss of Use of the Foot:Dorsiflexion Defects ...............................................................................29 Table 3.5: Percent Loss of Use of the Foot: Inversion and Eversion Defects ofthe Foot ............................................30 Table 3.6: Mild, Moderate and Marked Defects ..........................................................................................................32 Table 3.7: Percent Loss of Use of the Toe: Amputations, Ankylosis or Loss of Active Motion ..................................32 Chapter 5: Visual System Table 5.1. Visual Loss .................................................................................................................................................39 Table 5.2. Visual Field Loss ........................................................................................................................................40 Table 5.3. Diplopia ......................................................................................................................................................40 Chapter 9: Non-schedule Awards Table 9.1. LWEC and Maximum PPD Benefit ............................................................................................................47 Chapter 11: Spine and Pelvis Table 11.1: Soft Tissue Spine Conditions - Non Surgically Treated............................................................................51 Table 11.2: Surgically Treated Spine Conditions.........................................................................................................53 Table 11.3: Vertebral Fractures ...................................................................................................................................55 Table 11.3(a): Stable Compression/Burst Fracture Pattern ..........................................................................................56 Table 11.3(b):Translation/Rotation Fracture Pattern (including PLC integrity)...........................................................59 Table 11.3(c): Distraction Fracture Pattern (includingPLC integrity) .........................................................................62 Table S11.4: Radiculopathy Criteria............................................................................................................................65 Table S11.4(a). Motor Deficits: Categories for Determining Impairment Due To Loss of Function Resulting From Nerve Disorders (Upper or Lower Extremity Value) ...................................................................................................68

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NYS Guidelines for Determining Permanent Impairment and Loss of Wage Earning Capacity

Table S11.4(b): Sensory Deficits: Categories For Determining Impairment Due To Nerve Root Disorders (Severity Multiplier).................................................................................................................................................................... 69 Table S11.5: Spinal Nerve Root Impairment Affecting the Upper Extremity .............................................................70 Table S11.6: Spinal Nerve Root Impairment Affecting the Lower Extremity .............................................................70 Table S11.7: Radiculopathy Severity Rankings...........................................................................................................71 Table S11.7(a): Points for Cervical and Thoracic Radiculopathy................................................................................71 Table S11.7(b): Points for Lumbar Radiculopathy ......................................................................................................71 Table 11.8: Spinal Cord Injury ....................................................................................................................................72 Table S11.9: Standard Neurological Classification of Spinal Cord Injury Worksheet (ASIA Worksheet) ..................76 Table 11.10: The Pelvis ...............................................................................................................................................78 Chapter 12: Respiratory Table 12.1: Pneumoconioses and other Occupational Respiratory Diseases (other than Asthma) ...............................82 Table 12.2: Asthma......................................................................................................................................................87 Table S12.3: Examples of Potential Causes of Asthma from Sensitizers ....................................................................92 Table S12.4: Examples of Potential Causes of Asthma from Irritants .........................................................................92 Table 12.5: Lung Cancer .............................................................................................................................................92 Table S12.6: Fifth Percentile Values of % FEV1 Loss by Test Interval (years) and Gender .......................................93 Table S12.7: Severity of Pulmonary FunctionTest Abnormality ................................................................................95 Table S12.7(a) Degree of Severity of Any Spirometric Abnormality Based on Decrease in FEV1.............................95 Table S12.7(b) Degree of Severity of Decrease inDiffusing Capacity........................................................................95 Table S12.8(a): Prediction and Lower Limits of Normal Equations for Spirometric Parameters for Male Subjects ..96 Table S12.8(b): Prediction and Lower Limits of Normal Equations for Spirometric Parameters for Female Subjects .....................................................................................................................................................................................98 Table S12.9(a): Prediction and Lower Limits of Normal Equations for FEV1/FEV6 % and FEV1/FVC % for Male Subjects...................................................................................................................................................................... 100 Table S12.9(b): Prediction and Lower Limits of Normal Equations for FEV1/FEV6 % and FEV1/FVC % for Female Subjects...................................................................................................................................................................... 100 Table S12.10(a): DLCO Reference Equations for Men .............................................................................................101 Table S12.10(b): DLCO Reference Equations for Women........................................................................................102 Table S12.11: Selected Reference Values for Maximal Incremental CycleExercise Test ........................................102 Table S12.12: Suggested Normal Guidelines for Interpretation of Cardiopulmonary Exercise Testing Results........103 Table S12.13: Dyspnea Evaluation Questionnaire.....................................................................................................104 Table S12.14: Normal FEV1/FVC (%)......................................................................................................................104 Chapter 14: Skin Table 14.1: Skin.........................................................................................................................................................106 Chapter 15: Brain Table 15.1: Brain .......................................................................................................................................................107

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