ICDcodes.org
FY2027

M19 — Other and unspecified osteoarthritis

Not billable

Is M19 billable?

No — M19 is a non-billable header code. M19 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 52 billable codes beneath M19.

Billable codes under this header

M19 at a glance

CodeM19
DescriptionOther and unspecified osteoarthritis
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Excludes1 — never code together

The conditions below can never be reported together with M19 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

Excludes2 — not included here

The conditions below are not part of M19, but a patient may have both at the same time. When documentation supports it, M19 and the excluded code may both be reported.

  • arthrosis of spine (M47.-)
  • hallux rigidus (M20.2)
  • osteoarthritis of spine (M47.-)

Excludes2 — not included here — inherited from Chapter 13

The conditions below are not part of M19, but a patient may have both at the same time. When documentation supports it, M19 and the excluded code may both be reported.

  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Excludes2 — not included here — inherited from M15-M19

The conditions below are not part of M19, but a patient may have both at the same time. When documentation supports it, M19 and the excluded code may both be reported.

  • osteoarthritis of spine (M47.-)

What codes fall under M19? (4)

How long has M19 existed?

M19 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which codes are confused with M19?

ICD-10-CM declares these codes mutually exclusive with M19 — exactly one of each pair can be correct for a given encounter.