FY2027 ICD-10-CM reference
M00: Pyogenic arthritis
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Pyogenic arthritis. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Nonbillable heading. Verified against the official FY2027 order file.
CMS-HCC V28
Not applicable to this nonbillable heading
CMS-HCC V24
Not applicable to this nonbillable heading
ESRD
Not applicable to this nonbillable heading
PACE
Not applicable to this nonbillable heading
RxHCC
Not applicable to this nonbillable heading
HHS-HCC
Not applicable to this nonbillable heading
More specific FY2027 codes
- M00.0: Staphylococcal arthritis and polyarthritisNonbillable heading
- M00.1: Pneumococcal arthritis and polyarthritisNonbillable heading
- M00.2: Other streptococcal arthritis and polyarthritisNonbillable heading
- M00.8: Arthritis and polyarthritis due to other bacteriaNonbillable heading
- M00.9: Pyogenic arthritis, unspecifiedBillable code
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Instructional note
Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Source: M00-M99 (chapter, inherited).
Excludes2
arthropathic psoriasis (L40.5-)
Source: M00-M99 (chapter, inherited).
Excludes2
certain conditions originating in the perinatal period (P04-P96)
Source: M00-M99 (chapter, inherited).
Excludes2
certain infectious and parasitic diseases (A00-B99)
Source: M00-M99 (chapter, inherited).
Excludes2
compartment syndrome (traumatic) (T79.A-)
Source: M00-M99 (chapter, inherited).
Excludes2
complications of pregnancy, childbirth and the puerperium (O00-O9A)
Source: M00-M99 (chapter, inherited).
Excludes2
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
Source: M00-M99 (chapter, inherited).
Excludes2
endocrine, nutritional and metabolic diseases (E00-E88)
Source: M00-M99 (chapter, inherited).
Excludes2
injury, poisoning and certain other consequences of external causes (S00-T88)
Source: M00-M99 (chapter, inherited).
Excludes2
neoplasms (C00-D49)
Source: M00-M99 (chapter, inherited).
Excludes2
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: M00-M99 (chapter, inherited).
Instructional note
This block comprises arthropathies due to microbiological agents. Distinction is made between the following types of etiological relationship:
Source: M00-M02 (section, inherited).
Instructional note
a) direct infection of joint, where organisms invade synovial tissue and microbial antigen is present in the joint;
Source: M00-M02 (section, inherited).
Instructional note
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.
Source: M00-M02 (section, inherited).
Excludes2
infection and inflammatory reaction due to internal joint prosthesis (T84.5-)
Source: M00 (category, direct).
Compare the FY2027 additions, removals and billable-status changes
What does M00 mean in FY2027?
The official ICD-10-CM descriptor is Pyogenic arthritis. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is M00 billable in FY2027?
The FY2027 order file marks M00 as a nonbillable heading. Select a complete billable child code.
Does M00 map to an HCC?
Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.
Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.
Review the FY2026 April edition