M02.261 is the authoritative medical code for Postimmunization arthropathy, right knee. This classification is used in medical billing and clinical recording to specify the clinical criteria for postimmunization arthropathy, right knee (ICD-10-CM M02.261), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Postimmunization arthropathy, right knee is a billable ICD-10-CM diagnosis code M02.261. 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 M02.261 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
What can't be coded together with M02.261?
Per Excludes1 instructions, M02.261 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 M02.261 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 M02.261, 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: