M25.1
Header — not billable
Fistula of joint
Fistula of joint
M25.1 is a header (parent) code in the ICD-10-CM hierarchy. It is not billable for claim submission. Use one of the billable child codes listed below.
Billable codes in this category
Each of the codes below is billable. Choose the one that most accurately describes the patient's diagnosis.
M25.10
Fistula, unspecified joint
M25.18 M25.10 identifies a fistula arising from a joint when the specific joint has not been documented or cannot be determined from the medical record.
Fistula, other specified site
M25.18 identifies a joint fistula at a musculoskeletal site that does not map to any of the named joint locations in the M25.11–M25.17 subcategories. The tabular list explicitly includes fistula of the vertebrae as an applicable example under this code.