Chapter XIII

Diseases of the musculoskeletal system and connective tissue

Other disorders of the musculoskeletal system and connective tissue

M95 Other acquired deformities of musculoskeletal system and connective tissue
Excludes: acquired:
· absence of limbs and organs ( Z89-Z90 )
· deformities of limbs ( M20-M21 )
congenital malformations and deformations of the musculoskeletal system ( Q65-Q79 )
deforming dorsopathies ( M40-M43 )
dentofacial anomalies [including malocclusion] ( K07.- )
postprocedural musculoskeletal disorders ( M96.- )
M95.0 Acquired deformity of nose
Excludes: deviated nasal septum ( J34.2 )
M95.1 Cauliflower ear
Excludes: other acquired deformities of ear ( H61.1 )
M95.2 Other acquired deformity of head
M95.3 Acquired deformity of neck
M95.4 Acquired deformity of chest and rib
M95.5 Acquired deformity of pelvis
Excludes: maternal care for known or suspected disproportion ( O33.- )
M95.8 Other specified acquired deformities of musculoskeletal system
M95.9 Acquired deformity of musculoskeletal system, unspecified

M96 Postprocedural musculoskeletal disorders, not elsewhere classified
Excludes: arthropathy following intestinal bypass ( M02.0)
disorders associated with osteoporosis ( M80-M81)
presence of functional implants and other devices ( Z95-Z97)
M96.0 Pseudarthrosis after fusion or arthrodesis
Nonunion after insertion of orthopaedic implant
M96.1 Postlaminectomy syndrome, not elsewhere classified
M96.2 Postradiation kyphosis
M96.3 Postlaminectomy kyphosis
M96.4 Postsurgical lordosis
M96.5 Postradiation scoliosis
M96.6 Fracture of bone following insertion of orthopaedic implant, joint prosthesis, or bone plate
Excludes: complication of internal orthopaedic devices, implants or grafts ( T84.-)
M96.8 Other postprocedural musculoskeletal disorders

Instability of joint secondary to removal of joint prosthesis
Postoperative osteolysis
M96.9 Postprocedural musculoskeletal disorder, unspecified

M99 Biomechanical lesions, not elsewhere classified
Note: This category should not be used if the condition can be classified elsewhere.
The following supplementary subclassification to indicate the site of lesions is provided for optional use with appropriate subcategories in M99.-; see also note at the beginning of this chapter.
0 Head region
1 Cervical region
2 Thoracic region
3 Lumbar region
4 Sacral region
5 Pelvic region
6 Lower extremity
7 Upper extremity
8 Rib cage
9 Abdomen and other
M99.0 Segmental and somatic dysfunction
M99.1 Subluxation complex (vertebral)
M99.2 Subluxation stenosis of neural canal
M99.3 Osseous stenosis of neural canal
M99.4 Connective tissue stenosis of neural canal
M99.5 Intervertebral disc stenosis of neural canal
M99.6 Osseous and subluxation stenosis of intervertebral foramina
M99.7 Connective tissue and disc stenosis of intervertebral foramina
M99.8 Other biomechanical lesions
M99.9 Biomechanical lesion, unspecified