Excludes:
* certain conditions originating in the perinatal period (P00-P96)
* certain disorders of the temporomandibular joint (K07.6)
* 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-M25 | Arthropathies |
| M30-M36 | Systemic connective tissue disorders |
| M40-M54 | Dorsopathies |
| M60-M79 | 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.
0 MULTIPLE SITES
1 SHOULDER REGION
- clavicle
- scapula
- acromioclavicular }
- glenohumeral } joints
- sternoclavicular }
2 UPPER ARM
- humerus
- elbow joint
3 FOREARM
- radius
- ulna
- wrist joint
4 HAND
- carpus
- fingers
- metacarpus
- joints between these bones
5 PELVIC REGION AND THIGH
- buttock
- femur
- pelvis
- hip (joint)
- sacroiliac joint
6 LOWER LEG
- fibula
- knee joint
- tibia
7 ANKLE AND FOOT
- metatarsus
- tarsus
- toes
- ankle joint
- other joints in foot
8 OTHER
- head
- neck
- ribs
- skull
- trunk
- vertebral column
9 SITE UNSPECIFIED
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