2027 ICD-10-CM Diagnosis Code M90.80Osteopathy in diseases classified elsewhere, unspecified site
ICD-10-CM Codes›M00–M99›M86-M90›M90
- Billable — Valid for Submission
- Chronic Condition
M90.80 is a billable ICD-10-CM diagnosis code for osteopathy in diseases classified elsewhere, unspecified site. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 553 through 554. The code is a manifestation code that cannot be reported as the principal diagnosis. Coders also document this condition as hyperphosphatasemia with bone disease. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified bone disease and musculoskeletal deformities.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for M90.80.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Hyperphosphatasemia with bone disease
- Infection of bone associated with another disease
- Metabolic bone disease
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to M90.80: its own notes plus those printed at M90.8, M90, block M86-M90, and Chapter 13. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- postprocedural osteopathies (M96.-)
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may 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 First
The underlying condition named in the note is sequenced before this code.
Notes
General instructions on how these codes are used.
- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Bone Diseases
Your bones help you move, give you shape and support your body. They are living tissues that rebuild constantly throughout your life. During childhood and your teens, your body adds new bone faster than it removes old bone. After about age 20, you can lose bone faster than you make bone.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert M90.80 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M90.80Overview
What is the ICD-10 code for osteopathy in diseases classified elsewhere, unspecified site?
The ICD-10-CM code for osteopathy in diseases classified elsewhere, unspecified site is M90.80 (sometimes written as M9080). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is M90.80 (Osteopathy in diseases classified elsewhere) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report osteopathy in diseases classified elsewhere, unspecified site on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does M90.80 group to?
On inpatient claims, osteopathy in diseases classified elsewhere, unspecified site maps to MS-DRG 554, 553, with relative weights from 0.8328 to 1.2492 depending on complications. Higher weights mean higher Medicare reimbursement.
Can M90.80 be a principal diagnosis?
No. This is a manifestation code: osteopathy in diseases classified elsewhere, unspecified site describes the manifestation of an underlying disease rather than the disease itself, so the underlying condition is sequenced first.
Can M90.80 be reported with B45.3?
Not as a rule. The Excludes1 note at M90, which applies to M90.80, lists "cryptococcosis (B45.3)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
