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Chapter XIII
Diseases of the musculoskeletal system and connective tissue - M00-M99
Excludes:
certain conditions originating in the perinatal period ( P00-P96 )
certain infectious and parasitic diseases ( A00-B99 )
compartment syndrome ( T79.6 )
complications of pregnancy, childbirth and the puerperium ( O00-O99 )
congenital malformations, deformations and chromosomal abnormalities ( Q00-Q99 )
endocrine, nutritional and metabolic diseases ( E00-E90 )
injury, poisoning and certain other consequences of external causes ( S00-T98 )
neoplasms ( C00-D48 )
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified ( R00-R99 )
This chapter contains the following blocks:
- M00-M25Arthropathies
- M30-M36 Systemic connective tissue disorders
- M40-M54 Dorsopathies
- M60-M79 Soft tissue disorders
- M60-M63 Disorders of muscles
- M65-M68 Disorders of synovium and tendon
- M70-M79 Other soft tissue disorders
- M80-M94 Osteopathies and chondropathies
- M95-M99 Other disorders of the musculoskeletal system and connective tissue
Asterisk categories for this chapter are provided as follows:
- M01* Direct infections of joint in infectious and parasitic diseases classified elsewhere
- M03* Postinfective and reactive arthropathies in diseases classified elsewhere
- M07* Psoriatic and enteropathic arthropathies
- M09* Juvenile arthritis in diseases classified elsewhere
- M14* Arthropathies in other diseases classified elsewhere
- M36* Systemic disorders of connective tissue in diseases classified elsewhere
- M49* Spondylopathies in diseases classified elsewhere
- M63* Disorders of muscle in diseases classified elsewhere
- M68* Disorders of synovium and tendon in diseases classified elsewhere
- M73* Soft tissue disorders in diseases classified elsewhere
- M82* Osteoporosis in diseases classified elsewhere
- M90* Osteopathies in diseases classified elsewhere
Site of musculoskeletal involvement
The following subclassification to indicate the site of involvement is provided for optional use with appropriate categories in Chapter XIII. As local extensions or specialty adaptations may vary in the number of characters used, it is suggested that the supplementary site subclassification be placed in an identifiably separate position (e.g. in an additional box). Different sub-classifications for use with derangement of knee, dorsopathies, and biomechanical lesions not elsewhere classified are given at M23, before M40 and at M99 respectively.
- Multiple sites
- Shoulder region
clavicle
scapula
acromioclavicular .}
glenohumeral ........} joints
sternoclavicular .....}
- Upper arm
humerus
elbow joint
- Forearm
radius
ulna
wrist joint
- Hand
carpus
fingers
metacarpus
joints between these bones
- Pelvic region and thigh
buttock
femur
pelvis
hip (joint)
sacroiliac joint
- Lower leg
fibula
knee joint
tibia
- Ankle and foot
metatarsus
tarsus
toes
ankle joint
other joints in foot
- Other
head
neck
ribs
skull
trunk
vertebral column
- Site unspecified
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