Diseases of the musculoskeletal system and connective tissue (M00-M99)

Note:
Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Excludes 2:
arthropathic psoriasis (L40.5-)
certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
compartment syndrome (traumatic) (T79.A-)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Spondylopathies (M45-M49)

M45 Ankylosing spondylitis [+]
Rheumatoid arthritis of spine
Excludes 1: arthropathy in Reiter's disease (M02.3-)
juvenile (ankylosing) spondylitis (M08.1)
Excludes 2: Behçet's disease (M35.2)
M46 Other inflammatory spondylopathies [+]
M47 Spondylosis [+]
Includes: arthrosis or osteoarthritis of spine
degeneration of facet joints
M48 Other spondylopathies [+]
M49 Spondylopathies in diseases classified elsewhere [+]
Code first underlying disease, such as:
brucellosis (A23.-)
Charcot-Marie-Tooth disease (G60.0)
enterobacterial infections (A01-A04)
osteitis fibrosa cystica (E21.0)
Includes: curvature of spine in diseases classified elsewhere
deformity of spine in diseases classified elsewhere
kyphosis in diseases classified elsewhere
scoliosis in diseases classified elsewhere
spondylopathy in diseases classified elsewhere
Excludes 1: curvature of spine in tuberculosis [Pott's] (A18.01)
enteropathic arthropathies (M07.-)
gonococcal spondylitis (A54.41)
neuropathic [tabes dorsalis] spondylitis (A52.11)
neuropathic spondylopathy in syringomyelia (G95.0)
neuropathic spondylopathy in tabes dorsalis (A52.11)
nonsyphilitic neuropathic spondylopathy NEC (G98.0)
spondylitis in syphilis (acquired) (A52.77)
tuberculous spondylitis (A18.01)
typhoid fever spondylitis (A01.05)

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