ICD-10/M15

M15 ICD 2026 Code: Polyosteoarthritis

M15 is the authoritative medical code for Polyosteoarthritis. This classification is used in medical billing and clinical recording to specify the clinical criteria for polyosteoarthritis (ICD-10-CM M15), 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

Polyosteoarthritis is a non-billable ICD-10-CM category code M15. A more specific billable subcode must be selected for claims submission. Includes: arthritis of multiple sites. Excludes1 (not coded here): bilateral involvement of single joint M16-M19. Excludes2 (not included here): osteoarthritis of spine M47.-.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for M15 in the official ICD-10-CM tabular list.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • arthritis of multiple sites

Excludes1 — Not Coded Here

Conditions that can never be reported with this code; the two are mutually exclusive.

  • bilateral involvement of single joint M16-M19

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

  • osteoarthritis of spine M47.-

Frequently Asked Questions (FAQ) & Clinical Guidance

Can M15 be billed directly?

No. M15 (Polyosteoarthritis) 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 M15?

Per Excludes1 instructions, M15 must not be reported with: bilateral involvement of single joint (M16-M19).

Can M15 be reported alongside related conditions?

Per Excludes2 instructions, M15 and the following may both be reported when both are present: osteoarthritis of spine (M47.-).

Codes in This Family (7)

Official ICD-10-CM classifications in the same code family as M15, with their registry titles.

  • M15.0 — Primary generalized (osteo)arthritis
  • M15.1 — Heberden's nodes (with arthropathy)
  • M15.2 — Bouchard's nodes (with arthropathy)
  • M15.3 — Secondary multiple arthritis
  • M15.4 — Erosive (osteo)arthritis
  • M15.8 — Other polyosteoarthritis
  • M15.9 — Polyosteoarthritis, unspecified

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:

ICD Code M11 Other crystal arthropathies
ICD Code M12 Other and unspecified arthropathy
ICD Code M13 Other arthritis
ICD Code M14 Arthropathies in other diseases classified elsewhere
ICD Code M16 Osteoarthritis of hip
ICD Code M17 Osteoarthritis of knee
ICD Code M18 Osteoarthritis of first carpometacarpal joint
ICD Code M19 Other and unspecified osteoarthritis
ICD Code M20 Acquired deformities of fingers and toes
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