2027 ICD-10-CM Diagnosis Code M89.9Disorder of bone, unspecified
ICD-10-CM Codes›M00–M99›M86-M90›M89
- Billable — Valid for Submission
- Not Chronic
M89.9 is a billable ICD-10-CM diagnosis code for disorder of bone, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 564 through 566. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified bone disease and musculoskeletal deformities.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acute disease of bone
- Bilateral orbital deformity
- Bilateral orbital deformity due to bone disease
- Bone AND/OR joint disorder in mother complicating pregnancy, childbirth AND/OR puerperium
- Bone AND/OR joint disorder of back in mother complicating pregnancy, childbirth AND/OR puerperium
- Bone AND/OR joint disorder of lower extremities in mother complicating pregnancy, childbirth AND/OR puerperium
- Bone AND/OR joint disorder of pelvis in mother complicating pregnancy, childbirth AND/OR puerperium
- Chronic musculoskeletal pain due to disorder
- Chronic musculoskeletal pain due to disorder of bone
- Disorder of bone
- Disorder of bone and articular cartilage
- Disorder of bone caused by ionizing radiation
- Disorder of epiphysis
- Disorder of ethmoid bone
- Disorder of facial bone
- Disorder of hyoid bone
- Disorder of ilium
- Disorder of lacrimal bone
- Disorder of nasal bone
- Disorder of palatine bone
- Disorder of pelvic girdle
- Disorder of sesamoid bone of foot
- Disorder of skeletal system
- Disorder of skull
- Disorder of zygomatic bone
- Exostosis
- Left orbital deformity
- Left orbital deformity due to bone disease
- Lesion of bone
- Lesion of left parietal bone
- Lesion of right parietal bone
- Lesioned component
- Orbital deformity due to bone disease
- Perinatal skull defect
- Postinfectious osteopathy
- Pubic bone dysfunction
- Right orbital deformity
- Right orbital deformity due to bone disease
- Solitary exostosis
- Somatic dysfunction of hip region
- Somatic dysfunction of innominate bone
- Somatic dysfunction of pubic bone
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to M89.9: its own notes plus those printed at 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)
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.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Disorder (of) See Also: Disease;
bone M89.9
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 M89.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M89.9Overview
What is the ICD-10 code for disorder of bone, unspecified?
The ICD-10-CM code for disorder of bone, unspecified is M89.9 (sometimes written as M899). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is M89.9 (Other disorders of bone) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report disorder of bone, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does M89.9 group to?
When disorder of bone, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 564, 566, 565, with relative weights from 0.7374 to 1.4909 depending on complications. Higher weights mean higher Medicare reimbursement.
Can M89.9 be reported with a code from M96?
Not as a rule. The Excludes1 note at block M86-M90, which applies to M89.9, lists "postprocedural osteopathies (M96.-)". 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).
What is the ICD-9 equivalent of M89.9?
Under the General Equivalence Mappings, disorder of bone, unspecified converts to ICD-9-CM 733.90 (bone & cartilage dis NOS). The mapping is approximate, so confirm the match fits the documentation.
