M19.049 ICD-10-CM Code: Primary osteoarthritis, unspecified hand
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Inpatient Payment Groups (MS-DRG)
MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.
- MS-DRG 553 — BONE DISEASES AND ARTHROPATHIES WITH MCC (MDC 08)
- MS-DRG 554 — BONE DISEASES AND ARTHROPATHIES WITHOUT MCC (MDC 08)
A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.
Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for M19.049 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.
- polyarthritis (M15.-)
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- primary osteoarthritis of first carpometacarpal joint (M18.0-, M18.1-)
- arthrosis of spine (M47.-)
- hallux rigidus (M20.2)
- osteoarthritis of spine (M47.-)
Nearest Codes in This Family
Official ICD-10-CM classifications closest to M19.049 in its code family, with their registry titles.
- M19.032 — Primary osteoarthritis, left wrist
- M19.039 — Primary osteoarthritis, unspecified wrist
- M19.04 — Primary osteoarthritis, hand
- M19.041 — Primary osteoarthritis, right hand
- M19.042 — Primary osteoarthritis, left hand
- M19.07 — Primary osteoarthritis ankle and foot
- M19.071 — Primary osteoarthritis, right ankle and foot
- M19.072 — Primary osteoarthritis, left ankle and foot
- M19.079 — Primary osteoarthritis, unspecified ankle and foot
- M19.09 — Primary osteoarthritis, other specified site