M13.862 is the authoritative medical code for Other specified arthritis, left knee. This classification is used in medical billing and clinical recording to specify the clinical criteria for other specified arthritis, left knee (ICD-10-CM M13.862), 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
Other specified arthritis, left knee is a billable ICD-10-CM diagnosis code M13.862. Excludes1 (not coded here): osteoarthritis M15-M19; arthrosis M15-M19.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for M13.862 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.
- osteoarthritis M15-M19
- arthrosis M15-M19
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with M13.862?
Per official ICD-10-CM Excludes1 instructions, M13.862 must not be reported together with: osteoarthritis (M15-M19); arthrosis (M15-M19).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to M13.862 in its code family, with their registry titles.
- M13 — Other arthritis
- M13.0 — Polyarthritis, unspecified
- M13.1 — Monoarthritis, not elsewhere classified
- M13.10 — Monoarthritis, not elsewhere classified, unspecified site
- M13.11 — Monoarthritis, not elsewhere classified, shoulder
- M13.111 — Monoarthritis, not elsewhere classified, right shoulder
- M13.112 — Monoarthritis, not elsewhere classified, left shoulder
- M13.119 — Monoarthritis, not elsewhere classified, unspecified shoulder
- M13.12 — Monoarthritis, not elsewhere classified, elbow
- M13.121 — Monoarthritis, not elsewhere classified, right elbow
View all 40 codes in the M13 family