M02.86 is the authoritative medical code for Other reactive arthropathies, knee. This classification is used in medical billing and clinical recording to specify the clinical criteria for other reactive arthropathies, knee (ICD-10-CM M02.86), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Other reactive arthropathies, knee is a non-billable ICD-10-CM category code M02.86. A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): Behçet's disease M35.2; direct infections of joint in infectious and parasitic diseases classified elsewhere M01.-; postmeningococcal arthritis A39.84; mumps arthritis B26.85; rubella arthritis B06.82; syphilis arthritis late A52.77; rheumatic fever I00; tabetic arthropathy Charcôt's. Code first: underlying disease, such as:; congenital syphilis Clutton's joints; enteritis due to Yersinia enterocolitica A04.6; infective endocarditis I33.0; viral hepatitis B15-B19.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for M02.86 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- Behçet's disease M35.2
- direct infections of joint in infectious and parasitic diseases classified elsewhere M01.-
- postmeningococcal arthritis A39.84
- mumps arthritis B26.85
- rubella arthritis B06.82
- syphilis arthritis late A52.77
- rheumatic fever I00
- tabetic arthropathy Charcôt's
Code First
Underlying conditions that must be sequenced before this code.
- underlying disease, such as:
- congenital syphilis Clutton's joints
- enteritis due to Yersinia enterocolitica A04.6
- infective endocarditis I33.0
- viral hepatitis B15-B19
Frequently Asked Questions (FAQ) & Clinical Guidance
Can M02.86 be billed directly?
No. M02.86 (Other reactive arthropathies, knee) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
What can't be coded together with M02.86?
Per Excludes1 instructions, M02.86 must not be reported with: Behçet's disease (M35.2); direct infections of joint in infectious and parasitic diseases classified elsewhere (M01.-); postmeningococcal arthritis (A39.84); mumps arthritis (B26.85).
Does M02.86 need to be sequenced after another code?
Yes. Code first: underlying disease, such as:; congenital syphilis [Clutton's joints] (A50.5); enteritis due to Yersinia enterocolitica (A04.6); infective endocarditis (I33.0).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as M02.86, with their registry titles.
- M02 — Postinfective and reactive arthropathies
- M02.0 — Arthropathy following intestinal bypass
- M02.00 — Arthropathy following intestinal bypass, unspecified site
- M02.01 — Arthropathy following intestinal bypass, shoulder
- M02.011 — Arthropathy following intestinal bypass, right shoulder
- M02.012 — Arthropathy following intestinal bypass, left shoulder
- M02.019 — Arthropathy following intestinal bypass, unspecified shoulder
- M02.02 — Arthropathy following intestinal bypass, elbow
- M02.021 — Arthropathy following intestinal bypass, right elbow
- M02.022 — Arthropathy following intestinal bypass, left elbow
- M02.029 — Arthropathy following intestinal bypass, unspecified elbow
- M02.03 — Arthropathy following intestinal bypass, wrist
- M02.031 — Arthropathy following intestinal bypass, right wrist
- M02.032 — Arthropathy following intestinal bypass, left wrist
- M02.039 — Arthropathy following intestinal bypass, unspecified wrist
- M02.04 — Arthropathy following intestinal bypass, hand
- M02.041 — Arthropathy following intestinal bypass, right hand
- M02.042 — Arthropathy following intestinal bypass, left hand
- M02.049 — Arthropathy following intestinal bypass, unspecified hand
- M02.05 — Arthropathy following intestinal bypass, hip
- M02.051 — Arthropathy following intestinal bypass, right hip
- M02.052 — Arthropathy following intestinal bypass, left hip
- M02.059 — Arthropathy following intestinal bypass, unspecified hip
- M02.06 — Arthropathy following intestinal bypass, knee
- M02.061 — Arthropathy following intestinal bypass, right knee
- M02.062 — Arthropathy following intestinal bypass, left knee
- M02.069 — Arthropathy following intestinal bypass, unspecified knee
- M02.07 — Arthropathy following intestinal bypass, ankle and foot
- M02.071 — Arthropathy following intestinal bypass, right ankle and foot
- M02.072 — Arthropathy following intestinal bypass, left ankle and foot
- M02.079 — Arthropathy following intestinal bypass, unspecified ankle and foot
- M02.08 — Arthropathy following intestinal bypass, vertebrae
- M02.09 — Arthropathy following intestinal bypass, multiple sites
- M02.1 — Postdysenteric arthropathy
- M02.10 — Postdysenteric arthropathy, unspecified site
- M02.11 — Postdysenteric arthropathy, shoulder
- M02.111 — Postdysenteric arthropathy, right shoulder
- M02.112 — Postdysenteric arthropathy, left shoulder
- M02.119 — Postdysenteric arthropathy, unspecified shoulder
- M02.12 — Postdysenteric arthropathy, elbow
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: