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ICD-10-CM · FY 2026 APRIL UPDATE

M12.4

Intermittent hydrarthrosis

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
M12.40Intermittent hydrarthrosis, unspecified siteBillable
M12.41Intermittent hydrarthrosis, shoulderCategory
M12.411Intermittent hydrarthrosis, right shoulderBillable
M12.412Intermittent hydrarthrosis, left shoulderBillable
M12.419Intermittent hydrarthrosis, unspecified shoulderBillable
M12.42Intermittent hydrarthrosis, elbowCategory
M12.421Intermittent hydrarthrosis, right elbowBillable
M12.422Intermittent hydrarthrosis, left elbowBillable
M12.429Intermittent hydrarthrosis, unspecified elbowBillable
M12.43Intermittent hydrarthrosis, wristCategory
M12.431Intermittent hydrarthrosis, right wristBillable
M12.432Intermittent hydrarthrosis, left wristBillable
M12.439Intermittent hydrarthrosis, unspecified wristBillable
M12.44Intermittent hydrarthrosis, handCategory
M12.441Intermittent hydrarthrosis, right handBillable
M12.442Intermittent hydrarthrosis, left handBillable
M12.449Intermittent hydrarthrosis, unspecified handBillable
M12.45Intermittent hydrarthrosis, hipCategory
M12.451Intermittent hydrarthrosis, right hipBillable
M12.452Intermittent hydrarthrosis, left hipBillable
M12.459Intermittent hydrarthrosis, unspecified hipBillable
M12.46Intermittent hydrarthrosis, kneeCategory
M12.461Intermittent hydrarthrosis, right kneeBillable
M12.462Intermittent hydrarthrosis, left kneeBillable
M12.469Intermittent hydrarthrosis, unspecified kneeBillable
M12.47Intermittent hydrarthrosis, ankle and footCategory
M12.471Intermittent hydrarthrosis, right ankle and footBillable
M12.472Intermittent hydrarthrosis, left ankle and footBillable
M12.479Intermittent hydrarthrosis, unspecified ankle and footBillable
M12.48Intermittent hydrarthrosis, other siteBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.