ICDwise
M01 ⚠ Non-billable

Direct infections of joint in infectious and parasitic diseases classified elsewhere

ICD-10-CM · FY2026 · Diseases of the Musculoskeletal System and Connective Tissue

Code
M01
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Musculoskeletal System and Connective Tissue
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Official coding notes

From CMS's ICD-10-CM Tabular List.

Excludes1 — never code together
  • arthropathy in Lyme disease (A69.23)
  • gonococcal arthritis (A54.42)
  • meningococcal arthritis (A39.83)
  • mumps arthritis (B26.85)
  • postinfective arthropathy (M02.-)
  • postmeningococcal arthritis (A39.84)
  • reactive arthritis (M02.3)
  • rubella arthritis (B06.82)
  • sarcoidosis arthritis (D86.86)
  • typhoid fever arthritis (A01.04)
  • tuberculosis arthritis (A18.01-A18.02)
Code first
  • underlying disease, such as:
  • leprosy [Hansen's disease] (A30.-)
  • mycoses (B35-B49)
  • O'nyong-nyong fever (A92.1)
  • paratyphoid fever (A01.1-A01.4)

Frequently asked questions

What is ICD-10 code M01?
ICD-10-CM code M01 represents Direct infections of joint in infectious and parasitic diseases classified elsewhere. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Musculoskeletal System and Connective Tissue chapter, effective October 1, 2025 – September 30, 2026.
Is M01 billable?
No. M01 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is M01 in?
M01 belongs to the Diseases of the Musculoskeletal System and Connective Tissue chapter (M00–M99) of ICD-10-CM.

Related codes in the M01 category

M01.X Direct infection of joint in infectious and parasitic diseases classified elsewhere Non-billable M01.X0 Direct infection of unspecified joint in infectious and parasitic diseases classified elsewhere Billable M01.X1 Direct infection of shoulder joint in infectious and parasitic diseases classified elsewhere Non-billable M01.X2 Direct infection of elbow in infectious and parasitic diseases classified elsewhere Non-billable M01.X3 Direct infection of wrist in infectious and parasitic diseases classified elsewhere Non-billable M01.X4 Direct infection of hand in infectious and parasitic diseases classified elsewhere Non-billable M01.X5 Direct infection of hip in infectious and parasitic diseases classified elsewhere Non-billable M01.X6 Direct infection of knee in infectious and parasitic diseases classified elsewhere Non-billable

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