M19.042 Primary osteoarthritis, left hand
ICD-10-CM · CMS code reference
Official ICD-10-CM description: Primary osteoarthritis, left hand
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
Excludes1
Not coded together with this code. The exception is when the two conditions are unrelated to each other.
- polyarthritis (M15.-)
Excludes2
Not part of this code, but both can be coded when both are documented.
- primary osteoarthritis of first carpometacarpal joint (M18.0-, M18.1-)
- arthrosis of spine (M47.-)
- hallux rigidus (M20.2)
- osteoarthritis of spine (M47.-)
Related codes
M19.031Primary osteoarthritis, right wrist ICD-10-CMM19.032Primary osteoarthritis, left wrist ICD-10-CMM19.039Primary osteoarthritis, unspecified wrist ICD-10-CMM19.041Primary osteoarthritis, right hand ICD-10-CMM19.049Primary osteoarthritis, unspecified hand ICD-10-CMM19.071Primary osteoarthritis, right ankle and foot ICD-10-CMM19.072Primary osteoarthritis, left ankle and foot ICD-10-CMM19.079Primary osteoarthritis, unspecified ankle and foot ICD-10-CM
Common questions
Is M19.042 a billable code?
Yes. M19.042 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.