List of Grades of Physical Disability
Akira Terashima (Professor of Urawa University)

Visual Impairment

Grade 1

Grade 2

Grade 3Visual acuity less than 0.01
(numericallybilateral)withcorrection on International
Vision Test Chart

1.Visual acuity less than 0.04
(numerically bilateral)
2. Visual field diameter 10 orless of both eyes and binocularvisual field loss morethan 95% than 90%
More than 100 dB ineach ear

1. Visual acuity less than 0.08
(numerically bilateral)
2. Visual field diameter 10 orless of both eyes and binocularvisual field loss more

Hearing Impairment

Para-equilibrium

Difficulty of gait

Voice, Speech andLanguage Disorders

No voice, no speech or nolanguage

Upper Limb Impairment

1.
Total
functionloss,bilateral
2. Amputation above wrist,

1. Severe function loss, bilateral
2. Amputation of five fingers,
bilateral bilateral
3. Amputation above half lengthof humorous, unilateral
4.
Totalfunctionloss,unilateral

Lower Limb Impairment

1.
Total
functionloss,bilateral
2. Amputation above half length

1. Severe function loss, bilateral
2. Amputation above half lengthof thigh, bilateral of tibia,
bilateralBodily Dysfunction

No sitting balance

1. Difficulty of sitting or
standing position
2. Difficulty of standing up
movement

Cardiac Disorders

Limitation of daily living(living on bed)
Limitation of daily living(living on bed)
Limitation of daily living(living on bed)
Limitation of daily living(living on bed)
Limitation of daily living(living on bed)
Severe Limitation of dailyliving
Severe Limitation of dailylivingRenal Disorders
Respiratory Disorders
Bladderor
RectalDisorders
Small
IntestinalDisorders
Liver Disorders
Immuno-deficiency by HIV

More than 90 dB in each

Limitation of daily living(living on bed)
Limitation of daily living(living on bed)

1. Amputation of thumb andindex finger, bilateral
2. Complete function loss of
thumb & index finger, bilateral
3. Severe function loss, unilateral
4. Amputation of five fingers,unilateral
5. Complete function loss of fivefingers, unilateral
1. Amputation above Chopart
joint, bilateral
2. Amputation above half lengthof thigh, unilateral
3. Complete function loss,unilateral
Difficulty of 100 m gait

Limitation of daily living(in-door living)
Limitation of daily living(in-door living)
Limitation of daily living(in-door living)
Limitation of daily living(in-door living)
Limitation of daily living(in-door living)
Limitation of daily living(in-door living)
Limitation of daily living(in-door living)Grade 4

Grade 5

Grade 6

1. Visual acuity less than 0.12(bilateral)
2. Visual field diameter 10 orless of both eyes

1. Visual acuity less than 0.2(numerically bilateral)
2. Visual field defect morethan 50%Visual acuity more than 0.2(numericalbilateral)and,acuity of worse eyeless than 0.02 and acuity ofbetter eye less than 0.6
1. More than 70 dB in each ear
2. One ear more than 90 dB,
the other more than 50 dB

1. More than 80 dB in each ear
2. Less than 50% on hearing
intelligibility
Difficulty of voicing, speechor language mask

Difficulty of gait under eye

1. Amputation of thumb,bilateral
2. Complete function loss ofthumb, bilateral
3. Complete function loss of
one of shoulder, elbow or
wrist joint, unilateral
4. Amputation of thumb or
index finger, unilateral
5. Complete function loss of
thumb and index finger,unilateral
6. Amputation of three fingers
including thumb or index
finger, unilateral
7. Complete function loss of
three fingers including
8. Severe function loss of four
fingers including

1. Severe function loss of thumb,bilateral
2. Severe function loss of oneof shoulder, elbow or wrist
joint, unilateral
3. Amputation of thumb,unilateral
4. Complete function loss of
thumb, unilateral
5. Severe function loss of thumband index finger, unilateral
6. Severe function loss of threefinger including thumb orindex finger, unilateral

1. Severe function loss of thumb,unilateral
2. Amputation of two fingers
including index finger,unilateral
3. Complete function loss of
two fingers including index
finger, unilateral

1. Amputation of five toes,bilateral
2. Complete function loss offive toes, bilateral
3. Amputation above half lengthof tibia, unilateral
4.Severefunction
loss,unilateral
unilateral
5. Complete function loss of
hip or knee joint, unilateral
6. Abnormally shortness of one
leg more than 10cm or 10%,
unilateral

1. Severe functions loss of hipor knee joint, unilateral
2. Complete function loss ofankle, unilateral
3. Abnormally shortness of one
leg more than 5cm or 6.7%,

1. Amputation above Lisfranc
joint, unilateral
2. Severe function loss of ankle
unilateral

Grade 7

1. Mild function loss,unilateral
2. Mild function loss of oneof shoulder, elbow or wrist
joint, unilateral
3. Mild function loss of
handand fingers, unilateral
4. Severe function loss oftwofingers including index
finger,unilateral
5. Amputation of middle,
thirdandlittlefingers,
unilateral
6. Complete function loss of
middle, third and littlefingers, unilateral
1. Severe function loss offive
toes, bilateral
2. Mild function loss,unilateral
3. Mild function loss of oneof hip, knee or wrist joint,unilateral
4. Amputation of five toes,unilateral
5. Complete function loss offive toes, unilateral
6. Abnormality shortness ofone
leg more than 3cm or 5%,
unilateral

Difficulty of 200m gait
Limitation of out-door(Notes)
activities
1. In case a person has two impairments listed in the same grade, his grade is to be
Limitationofout-door one grade severer, except that two impairments are specifically described as double
2. In the categories of upper and lower limb, the person who has two impairments
activities
in grade 7 is considered as grade 6.
Limitation of out-door
3. In case a person has two impairments in different grades, his grade is to be decided.
activities
4. "Amputation of finger" means amputation above IP joint of thumb, and above PIP
Limitation of out-door
joint of other fingers.
activities
5. "Function loss of finger" means the impairment below MP joint, and in case of thumb,
Limitation of out-door
opponent motion is included.
activities
6. The length of amputated stump is the practical length measured from underarm in
Limitation of out-door
upper limb, and from sciatic tuberous in lower limb.
activities
7. The length of lower limb is to be measured from spine iliaca anterior superior to medical maleolus.
Limitation of out-door
activities