M00.21

Other streptococcal arthritis, shoulder

FY2027Chapter 13: Diseases of the musculoskeletal system and connective tissue/M00–M02 Infectious arthropathies

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

M00.21 is a non-billable ICD-10-CM code header for other streptococcal arthritis, shoulder. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are M00.211 Other streptococcal arthritis, right shoulder; M00.212 Other streptococcal arthritis, left shoulder and M00.219 Other streptococcal arthritis, unspecified shoulder. Its coding notes include a Use additional code instruction and 11 Excludes2 entries.

Use additional code

Add the listed code as a secondary code, if known.

Inherited from M00.2 Other streptococcal arthritis and polyarthritis

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Inherited from M00 Pyogenic arthritis
  • infection and inflammatory reaction due to internal joint prosthesis (T84.5-)
Also from chapter/block level (10 notes)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
  • 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)

Notes

Also from chapter/block level (4 notes)
Inherited from M00–M02 Infectious arthropathies
  • This block comprises arthropathies due to microbiological agents. Distinction is made between the following types of etiological relationship:
    • a) direct infection of joint, where organisms invade synovial tissue and microbial antigen is present in the joint;
    • b) indirect infection, which may be of two types: a reactive arthropathy, where microbial infection of the body is established but neither organisms nor antigens can be identified in the joint, and a postinfective arthropathy, where microbial antigen is present but recovery of an organism is inconstant and evidence of local multiplication is lacking.
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 1 entry

More specific codes under M00.21 3