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ICD-10-CM · FY 2026 APRIL UPDATE

S84

Injury of nerves at lower leg level

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
S84.0Injury of tibial nerve at lower leg levelCategory
S84.00Injury of tibial nerve at lower leg level, unspecified legCategory
S84.00XAInjury of tibial nerve at lower leg level, unspecified leg, initial encounterBillable
S84.00XDInjury of tibial nerve at lower leg level, unspecified leg, subsequent encounterBillable
S84.00XSInjury of tibial nerve at lower leg level, unspecified leg, sequelaBillable
S84.01Injury of tibial nerve at lower leg level, right legCategory
S84.01XAInjury of tibial nerve at lower leg level, right leg, initial encounterBillable
S84.01XDInjury of tibial nerve at lower leg level, right leg, subsequent encounterBillable
S84.01XSInjury of tibial nerve at lower leg level, right leg, sequelaBillable
S84.02Injury of tibial nerve at lower leg level, left legCategory
S84.02XAInjury of tibial nerve at lower leg level, left leg, initial encounterBillable
S84.02XDInjury of tibial nerve at lower leg level, left leg, subsequent encounterBillable
S84.02XSInjury of tibial nerve at lower leg level, left leg, sequelaBillable
S84.1Injury of peroneal nerve at lower leg levelCategory
S84.10Injury of peroneal nerve at lower leg level, unspecified legCategory
S84.10XAInjury of peroneal nerve at lower leg level, unspecified leg, initial encounterBillable
S84.10XDInjury of peroneal nerve at lower leg level, unspecified leg, subsequent encounterBillable
S84.10XSInjury of peroneal nerve at lower leg level, unspecified leg, sequelaBillable
S84.11Injury of peroneal nerve at lower leg level, right legCategory
S84.11XAInjury of peroneal nerve at lower leg level, right leg, initial encounterBillable
S84.11XDInjury of peroneal nerve at lower leg level, right leg, subsequent encounterBillable
S84.11XSInjury of peroneal nerve at lower leg level, right leg, sequelaBillable
S84.12Injury of peroneal nerve at lower leg level, left legCategory
S84.12XAInjury of peroneal nerve at lower leg level, left leg, initial encounterBillable
S84.12XDInjury of peroneal nerve at lower leg level, left leg, subsequent encounterBillable
S84.12XSInjury of peroneal nerve at lower leg level, left leg, sequelaBillable
S84.2Injury of cutaneous sensory nerve at lower leg levelCategory
S84.20Injury of cutaneous sensory nerve at lower leg level, unspecified legCategory
S84.20XAInjury of cutaneous sensory nerve at lower leg level, unspecified leg, initial encounterBillable
S84.20XDInjury of cutaneous sensory nerve at lower leg level, unspecified leg, subsequent encounterBillable

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.