ICDcodes.org
FY2027

M90.80 — Osteopathy in diseases classified elsewhere, unspecified site

BillableUnspecified

Is M90.80 billable?

Yes, but M90.80 is an unspecified code. M90.80 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, M90.80 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 M90.80 — the more specific alternatives are listed below.

M90.80 at a glance

CodeM90.80
DescriptionOsteopathy in diseases classified elsewhere, unspecified site
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

What Medicare edits apply to M90.80?

The Medicare Code Editor screens inpatient claims before they are grouped. These edits name M90.80 directly.

Manifestation code — never sequenced first — MCE edit 6

This code describes a manifestation of an underlying disease. The underlying condition must be sequenced before it, so it can never be the principal or first-listed diagnosis.

Which MS-DRGs does M90.80 group to?

M90.80 sits in MDC 08 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 553Bone Diseases and Arthropathies with MCCmedical
  • 554Bone Diseases and Arthropathies without MCCmedical

How is M90.80 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to M90.80. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Mycetoma › bone
  • Osteochondritis › syphilitic
  • Periostitis › yaws (albuminosa) (circumscribed) (diffuse) (infective) (monomelic)
  • Rickets › vitamin-D-resistant (active) (acute) (adolescent) (chest wall) (congenital) (current) (infantile) (intestinal)
  • Scurvy, scorbutic › rickets
  • Syphilis, syphilitic › osteochondritis (acquired)
  • Caries › syphilitic › congenital
  • Osteochondropathy › syphilitic, congenital › early
  • Osteochondropathy › syphilitic, congenital › late
  • Osteomyelitis › syphilitic › congenital (general) (infective) (localized) (neonatal) (purulent) (septic) (staphylococcal) (streptococcal) (suppurative) (with periostitis)
  • Periostitis › syphilitic › congenital (albuminosa) (circumscribed) (diffuse) (infective) (monomelic)
  • Syphilis, syphilitic › periosteum › congenital (acquired)

Excludes1 — never code together — inherited from M86-M90

The conditions below can never be reported together with M90.80 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • postprocedural osteopathies (M96.-)

Excludes1 — never code together — inherited from M90

The conditions below can never be reported together with M90.80 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • osteochondritis, osteomyelitis, and osteopathy (in):
  • cryptococcosis (B45.3)
  • diabetes mellitus (E08-E13 with .69-)
  • gonococcal (A54.43)
  • neurogenic syphilis (A52.11)
  • renal osteodystrophy (N25.0)
  • salmonellosis (A02.24)
  • secondary syphilis (A51.46)
  • syphilis (late) (A52.77)

Code first — inherited from M90.8

The underlying condition below must be sequenced before M90.80. M90.80 describes a manifestation and cannot be the principal or first-listed diagnosis.

  • underlying disease, such as:
  • rickets (E55.0)
  • vitamin-D-resistant rickets (E83.31)

Excludes2 — not included here — inherited from Chapter 13

The conditions below are not part of M90.80, but a patient may have both at the same time. When documentation supports it, M90.80 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)

How long has M90.80 existed?

M90.80 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 M90.8 family? (9)