M00.9 ICD-10-CM Code: Pyogenic arthritis, unspecified
M00.9 is the billable ICD-10-CM code for “Pyogenic arthritis, unspecified” in the FY 2027 U.S. code set, effective Oct 1, 2026.
Official description
M00.9Pyogenic arthritis, unspecified
ICD-10-CM diagnosis code · United States clinical modification
Where M00.9 sits
- 1
Chapter 13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
- 2
Section
Infectious arthropathies (M00-M02)
- 3
Category M00
Pyogenic arthritis
- 4
Code M00.9
Pyogenic arthritis, unspecified
Notes for this code
Inclusion terms
- Infective arthritis NOS
Code first
No “code first” instruction is listed for M00.9.
Use additional code
No “use additional code” instruction is listed for M00.9.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for M00.9.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for M00.9.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code M00.9 mean?
M00.9 is the FY 2027 U.S. ICD-10-CM code for “Pyogenic arthritis, unspecified.”
Is M00.9 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, M00.9 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is M00.9 located in ICD-10-CM?
M00.9 is listed in Chapter 13, Diseases of the musculoskeletal system and connective tissue (M00-M99), within Infectious arthropathies (M00-M02) (M00–M02), under category M00, Pyogenic arthritis.
What coding notes are listed for M00.9?
Its listed inclusion terms are Infective arthritis NOS. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.