2027 ICD-10-CM Diagnosis Code M25.649Stiffness of unspecified hand, not elsewhere classified
ICD-10-CM Codes›M00–M99›M20-M25›M25
- Billable — Valid for Submission
- Not Chronic
M25.649 is a billable ICD-10-CM diagnosis code for stiffness of unspecified hand, not elsewhere classified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 555 through 556. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Musculoskeletal pain, not low back pain.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Active range of thumb abduction - finding
- Active range of thumb adduction - finding
- Active range of thumb extension - finding
- Active range of thumb flexion - finding
- Active range of thumb opposition - finding
- Ankylosis of joint of thumb
- Decreased active range of thumb abduction
- Decreased active range of thumb adduction
- Decreased active range of thumb extension
- Decreased active range of thumb flexion
- Decreased active range of thumb opposition
- Decreased passive range of thumb abduction
- Decreased passive range of thumb adduction
- Decreased passive range of thumb extension
- Decreased passive range of thumb flexion
- Decreased passive range of thumb opposition
- Decreased range of thumb movement
- Finger joint stiff
- Hand joint stiff
- Metacarpophalangeal joint stiff
- No active range of thumb abduction
- No active range of thumb adduction
- No active range of thumb extension
- No active range of thumb flexion
- No active range of thumb opposition
- No passive range of thumb abduction
- No passive range of thumb adduction
- No passive range of thumb extension
- No passive range of thumb flexion
- No passive range of thumb opposition
- No thumb movement
- Passive range of thumb abduction - finding
- Passive range of thumb adduction - finding
- Passive range of thumb extension - finding
- Passive range of thumb flexion - finding
- Passive range of thumb opposition - finding
- Range of thumb abduction - finding
- Range of thumb adduction - finding
- Range of thumb extension - finding
- Range of thumb flexion - finding
- Range of thumb opposition - finding
- Thumb joint stiff
- Thumb stiffness, brachydactyly, intellectual disability syndrome
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to M25.649: its own notes plus those printed at M25.6, M25, block M00-M25, block M20-M25, and Chapter 13. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- Disorders affecting predominantly peripheral (limb) joints
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
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.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name M25.649, its category, or a range that includes it.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Hand Injuries and Disorders
No matter how old you are or what you do for a living, you are always using your hands. When there is something wrong with them, you may not be able to do your regular activities.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert M25.649 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M25.649Overview
What is the ICD-10 code for stiffness of unspecified hand, not elsewhere classified?
The ICD-10-CM code for stiffness of unspecified hand, not elsewhere classified is M25.649 (sometimes written as M25649). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is M25.649 (Stiffness of hand, not elsewhere classified) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report stiffness of unspecified hand, not elsewhere classified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does M25.649 group to?
When stiffness of unspecified hand, not elsewhere classified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 555, 556, with relative weights from 0.8210 to 1.2908 depending on complications. Higher weights mean higher Medicare reimbursement.
Can M25.649 be reported with a code from M24.6?
Not as a rule. The Excludes1 note at M25.6, which applies to M25.649, lists "ankylosis of joint (M24.6-)". 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 M25.649?
Under the General Equivalence Mappings, stiffness of unspecified hand, not elsewhere classified converts to ICD-9-CM 719.54 (jt stiffness NEC-hand). The mapping is approximate, so confirm the match fits the documentation.
