FY2027 ICD-10-CM reference
M02.3: Reiter's disease
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Reiter's disease. 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.
More specific FY2027 codes
- M02.30: Reiter's disease, unspecified siteBillable code
- M02.31: Reiter's disease, shoulderNonbillable heading
- M02.32: Reiter's disease, elbowNonbillable heading
- M02.33: Reiter's disease, wristNonbillable heading
- M02.34: Reiter's disease, handNonbillable heading
- M02.35: Reiter's disease, hipNonbillable heading
- M02.36: Reiter's disease, kneeNonbillable heading
- M02.37: Reiter's disease, ankle and footNonbillable heading
- M02.38: Reiter's disease, vertebraeBillable code
- M02.39: Reiter's disease, multiple sitesBillable 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).
Code first
underlying disease, such as:
Source: M02 (category, inherited).
Code first
congenital syphilis [Clutton's joints] (A50.5)
Source: M02 (category, inherited).
Code first
enteritis due to Yersinia enterocolitica (A04.6)
Source: M02 (category, inherited).
Code first
infective endocarditis (I33.0)
Source: M02 (category, inherited).
Code first
viral hepatitis (B15-B19)
Source: M02 (category, inherited).
Excludes1
Behçet's disease (M35.2)
Source: M02 (category, inherited).
Excludes1
direct infections of joint in infectious and parasitic diseases classified elsewhere (M01.-)
Source: M02 (category, inherited).
Excludes1
postmeningococcal arthritis (A39.84)
Source: M02 (category, inherited).
Excludes1
mumps arthritis (B26.85)
Source: M02 (category, inherited).
Excludes1
rubella arthritis (B06.82)
Source: M02 (category, inherited).
Excludes1
syphilis arthritis (late) (A52.77)
Source: M02 (category, inherited).
Excludes1
rheumatic fever (I00)
Source: M02 (category, inherited).
Excludes1
tabetic arthropathy [Charcôt's] (A52.16)
Source: M02 (category, inherited).
Instructional note
Reactive arthritis
Source: M02.3 (self, direct).
Compare the FY2027 additions, removals and billable-status changes
What does M02.3 mean in FY2027?
The official ICD-10-CM descriptor is Reiter's disease. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is M02.3 billable in FY2027?
The FY2027 order file marks M02.3 as a nonbillable heading. Select a complete billable child code.
Does M02.3 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. Read the FY2027 Official Guidelines.
Review the FY2026 April edition