ICDcodes.org
FY2027

M08.229Juvenile rheumatoid arthritis with systemic onset, unspecified elbow

BillableUnspecified

Is M08.229 billable?

Yes, but M08.229 is an unspecified code. M08.229 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, M08.229 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting M08.229 — the more specific alternatives are listed below.

M08.229 at a glance

CodeM08.229
DescriptionJuvenile rheumatoid arthritis with systemic onset, unspecified elbow
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does M08.229 group to?

M08.229 sits in MDC 08 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 545Connective Tissue Disorders with MCCmedical
  • 546Connective Tissue Disorders with CCmedical
  • 547Connective Tissue Disorders without CC/MCCmedical

How is M08.229 listed in the Alphabetic Index?

The Alphabetic Index lists these routes under M08.22, the nearest indexed parent of M08.229. Use them to find the family, then select the specific code.

  • Still's disease or syndromeelbow (juvenile)

Excludes1 — never code together — inherited from M08

The conditions below can never be reported together with M08.229 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • arthropathy in Whipple's disease (M14.8)
  • Felty's syndrome (M05.0)
  • juvenile dermatomyositis (M33.0-)
  • psoriatic juvenile arthropathy (L40.54)

Excludes1 — never code together — inherited from M08.2

The conditions below can never be reported together with M08.229 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • adult-onset Still's disease (M06.1-)

Excludes2 — not included here — inherited from Chapter 13

The conditions below are not part of M08.229, but a patient may have both at the same time. When documentation supports it, M08.229 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)

Code also — inherited from M08

Two codes may be needed to describe the condition fully. Whether M08.229 is sequenced first depends on the reason for the encounter.

  • any associated underlying condition, such as:
  • regional enteritis [Crohn's disease] (K50.-)
  • ulcerative colitis (K51.-)

How long has M08.229 existed?

M08.229 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.

What other codes are in the M08.22 family? (2)