M99.03 – Segmental and somatic dysfunction of lumbar region
ICD-10-CM 2027 diagnosis code · Biomechanical lesions, not elsewhere classified (M99)
- Code
M99.03(claims format:M9903)- Description
- Segmental and somatic dysfunction of lumbar region
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
- Block
- M99 Biomechanical lesions, not elsewhere classified (M99)
- Parent codes
- M99 › M99.0
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
M99 – Biomechanical lesions, not elsewhere classified
- This category should not be used if the condition can be classified elsewhere.
Index terms for M99.03
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in M99.0
- M99.00 – Segmental and somatic dysfunction of head regionBillable
- M99.01 – Segmental and somatic dysfunction of cervical regionBillable
- M99.02 – Segmental and somatic dysfunction of thoracic regionBillable
- M99.04 – Segmental and somatic dysfunction of sacral regionBillable
- M99.05 – Segmental and somatic dysfunction of pelvic regionBillable
- M99.06 – Segmental and somatic dysfunction of lower extremityBillable
- M99.07 – Segmental and somatic dysfunction of upper extremityBillable
- M99.08 – Segmental and somatic dysfunction of rib cageBillable
- M99.09 – Segmental and somatic dysfunction of abdomen and other regionsBillable
Frequently asked questions
What is ICD-10 code M99.03?
M99.03 is the ICD-10-CM code for segmental and somatic dysfunction of lumbar region, in the block M99 (Biomechanical lesions, not elsewhere classified (M99)).
Is M99.03 a billable code?
Yes. M99.03 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does M99.03 belong to?
It belongs to category M99 – Biomechanical lesions, not elsewhere classified.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.