2027 ICD-10-CM Diagnosis Code M89.249Other disorders of bone development and growth, unspecified hand
ICD-10-CM Codes›M00–M99›M86-M90›M89
- Billable — Valid for Submission
- Not Chronic
M89.249 is a billable ICD-10-CM diagnosis code for other disorders of bone development and growth, unspecified hand. 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. Coders also document this condition as small epiphysis of distal phalanx of hand. 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.
- Small epiphysis of distal phalanx of hand
- Small epiphysis of metacarpal
- Small epiphysis of middle phalanx of finger
- Small epiphysis of phalanx of hand
- Small epiphysis of phalanx of index finger
- Small epiphysis of phalanx of little finger
- Small epiphysis of phalanx of middle finger
- Small epiphysis of phalanx of ring finger
- Small epiphysis of proximal phalanx of hand
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to M89.249: 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.
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 M89.249 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M89.249Overview
What is the ICD-10 code for other disorders of bone development and growth, unspecified hand?
The ICD-10-CM code for other disorders of bone development and growth, unspecified hand is M89.249 (sometimes written as M89249). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is M89.249 (Other disorders of bone development and growth, hand) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other disorders of bone development and growth, unspecified hand on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does M89.249 group to?
When other disorders of bone development and growth, unspecified hand 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 M89.249 be reported with a code from M96?
Not as a rule. The Excludes1 note at block M86-M90, which applies to M89.249, 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 M89.249?
Under the General Equivalence Mappings, other disorders of bone development and growth, unspecified hand converts to ICD-9-CM 733.99 (bone & cartilage dis NEC). The mapping is approximate, so confirm the match fits the documentation.
