Missouri Revised Statutes Title XVIII. Labor and Industrial Relations § 287.190. Permanent partial disability, amount to be paid--permanent partial disability defined--permanent total and partial total disability require certification by physician on compensability--award reduced when

(1) Loss of arm at shoulder ______________________________ 232

(2) Loss of arm between shoulder and elbow ____________________ 222

(3) Loss of arm at elbow joint ____________________ 210

(4) Loss of arm between elbow and wrist ____________________ 200

(5) Loss of hand at the wrist joint ____________________ 175

(6) Loss of thumb at proximal joint ____________________ 60

(7) Loss of thumb at distal joint ____________________ 45

(8) Loss of index finger at proximal joint ____________________ 45

(9) Loss of index finger at second joint ____________________ 35

(10) Loss of index finger at distal joint ____________________ 30

(11) Loss of either the middle or ring finger at the

proximal joint ______________________________ 35

(12) Loss of either the middle or ring finger

at second joint ______________________________ 30

(13) Loss of either the middle or ring finger

at the distal joint ______________________________ 26

(14) Loss of little finger at proximal joint ____________________ 22

(15) Loss of little finger at second joint ____________________ 20

(16) Loss of little finger at distal joint ____________________ 16

(17) Loss of one leg at the hip joint or so near thereto

as to preclude the use of artificial limb ____________________ 207

(18) Loss of one leg at or above the knee, where the

stump remains sufficient to permit the use of

artificial limb______________________________ 160

(19) Loss of one leg at or above ankle and below knee

joint ________________________________________ 155

(20) Loss of one foot in tarsus ____________________ 150

(21) Loss of one foot in metatarsus ____________________ 110

(22) Loss of great toe of one foot at proximal joint __________ 40

(23) Loss of great toe of one foot at distal joint __________ 22

(24) Loss of any other toe at proximal joint ____________________ 14

(25) Loss of any other toe at second joint ____________________ 10

(26) Loss of any other toe at distal joint ____________________ 8

(27) Complete deafness of both ears ____________________ 180

(28) Complete deafness of one ear, the

other being normal______________________________ 49

(29) Complete loss of the sight of one eye ____________________ 140

(1) For all injuries occurring on or after September 28, 1983, but before August 28, 1990, the weekly compensation shall be an amount equal to sixty-six and two-thirds percent of the employee's average weekly earnings as of the date of the injury; provided that the weekly compensation paid under this subdivision shall not exceed an amount equal to forty-five percent of the state average weekly wage, as such wage is determined by the division of employment security, as of the July first immediately preceding the date of injury;

(2) For all injuries occurring on or after September 28, 1981, the weekly compensation shall in no event be less than forty dollars per week;

(3) For all injuries occurring on or after August 28, 1990, but before August 28, 1991, the weekly compensation shall be an amount equal to sixty-six and two-thirds percent of the employee's average weekly earnings as of the date of the injury; provided that the weekly compensation paid under this subdivision shall not exceed an amount equal to fifty percent of the state average weekly wage;

(4) For all injuries occurring on or after August 28, 1991, but before August 28, 1992, the weekly compensation shall be an amount equal to sixty-six and two-thirds percent of the employee's average weekly earnings as of the date of the injury; provided that the weekly compensation paid under this subdivision shall not exceed an amount equal to fifty-two percent of the state average weekly wage;

(5) For all injuries occurring on or after August 28, 1992, the weekly compensation shall be an amount equal to sixty-six and two-thirds percent of the employee's average weekly earnings as of the date of the injury; provided that the weekly compensation paid under this subdivision shall not exceed an amount equal to fifty-five percent of the state average weekly wage.

6. (1) “Permanent partial disability” means a disability that is permanent in nature and partial in degree, and when payment therefor has been made in accordance with a settlement approved either by an administrative law judge or by the labor and industrial relations commission, a rating established by medical finding, certified by a physician, and approved by an administrative law judge or legal advisor, or an award by an administrative law judge or the commission, the percentage of disability shall be conclusively presumed to continue undiminished whenever a subsequent injury to the same member or same part of the body also results in permanent partial disability for which compensation under this chapter may be due; provided, however, the presumption shall apply only to compensable injuries which may occur after August 29, 1959.

(2) Permanent partial disability or permanent total disability shall be demonstrated and certified by a physician. Medical opinions addressing compensability and disability shall be stated within a reasonable degree of medical certainty. In determining compensability and disability, where inconsistent or conflicting medical opinions exist, objective medical findings shall prevail over subjective medical findings. Objective medical findings are those findings demonstrable on physical examination or by appropriate tests or diagnostic procedures.

(3) Any award of compensation shall be reduced by an amount proportional to the permanent partial disability determined to be a preexisting disease or condition or attributed to the natural process of aging sufficient to cause or prolong the disability or need of treatment.