S84: Injury of nerves at lower leg level

Codes under S84 (Injury of nerves at lower leg level). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
S84.0	Injury of tibial nerve at lower leg level	—
S84.00	Injury of tibial nerve at lower leg level, unspecified leg	—
S84.00XA	Injury of tibial nerve at lower leg level, unspecified leg, initial encounter	✓
S84.00XD	Injury of tibial nerve at lower leg level, unspecified leg, subsequent encounter	✓
S84.00XS	Injury of tibial nerve at lower leg level, unspecified leg, sequela	✓
S84.01	Injury of tibial nerve at lower leg level, right leg	—
S84.1	Injury of peroneal nerve at lower leg level	—
S84.01XA	Injury of tibial nerve at lower leg level, right leg, initial encounter	✓
S84.01XD	Injury of tibial nerve at lower leg level, right leg, subsequent encounter	✓
S84.01XS	Injury of tibial nerve at lower leg level, right leg, sequela	✓
S84.02	Injury of tibial nerve at lower leg level, left leg	—
S84.2	Injury of cutaneous sensory nerve at lower leg level	—
S84.02XA	Injury of tibial nerve at lower leg level, left leg, initial encounter	✓
S84.02XD	Injury of tibial nerve at lower leg level, left leg, subsequent encounter	✓
S84.02XS	Injury of tibial nerve at lower leg level, left leg, sequela	✓
S84.8	Injury of other nerves at lower leg level	—
S84.9	Injury of unspecified nerve at lower leg level	—
S84.10	Injury of peroneal nerve at lower leg level, unspecified leg	—
S84.10XA	Injury of peroneal nerve at lower leg level, unspecified leg, initial encounter	✓
S84.10XD	Injury of peroneal nerve at lower leg level, unspecified leg, subsequent encounter	✓
S84.10XS	Injury of peroneal nerve at lower leg level, unspecified leg, sequela	✓
S84.11	Injury of peroneal nerve at lower leg level, right leg	—
S84.11XA	Injury of peroneal nerve at lower leg level, right leg, initial encounter	✓
S84.11XD	Injury of peroneal nerve at lower leg level, right leg, subsequent encounter	✓
S84.11XS	Injury of peroneal nerve at lower leg level, right leg, sequela	✓
S84.12	Injury of peroneal nerve at lower leg level, left leg	—
S84.12XA	Injury of peroneal nerve at lower leg level, left leg, initial encounter	✓
S84.12XD	Injury of peroneal nerve at lower leg level, left leg, subsequent encounter	✓
S84.12XS	Injury of peroneal nerve at lower leg level, left leg, sequela	✓
S84.20	Injury of cutaneous sensory nerve at lower leg level, unspecified leg	—
S84.20XA	Injury of cutaneous sensory nerve at lower leg level, unspecified leg, initial encounter	✓
S84.20XD	Injury of cutaneous sensory nerve at lower leg level, unspecified leg, subsequent encounter	✓
S84.20XS	Injury of cutaneous sensory nerve at lower leg level, unspecified leg, sequela	✓
S84.21	Injury of cutaneous sensory nerve at lower leg level, right leg	—
S84.21XA	Injury of cutaneous sensory nerve at lower leg level, right leg, initial encounter	✓
S84.21XD	Injury of cutaneous sensory nerve at lower leg level, right leg, subsequent encounter	✓
S84.21XS	Injury of cutaneous sensory nerve at lower leg level, right leg, sequela	✓
S84.22	Injury of cutaneous sensory nerve at lower leg level, left leg	—
S84.22XA	Injury of cutaneous sensory nerve at lower leg level, left leg, initial encounter	✓
S84.22XD	Injury of cutaneous sensory nerve at lower leg level, left leg, subsequent encounter	✓
S84.22XS	Injury of cutaneous sensory nerve at lower leg level, left leg, sequela	✓
S84.80	Injury of other nerves at lower leg level	—
S84.90	Injury of unspecified nerve at lower leg level, unspecified leg	—
S84.90XA	Injury of unspecified nerve at lower leg level, unspecified leg, initial encounter	✓
S84.90XD	Injury of unspecified nerve at lower leg level, unspecified leg, subsequent encounter	✓
S84.90XS	Injury of unspecified nerve at lower leg level, unspecified leg, sequela	✓
S84.91	Injury of unspecified nerve at lower leg level, right leg	—
S84.91XA	Injury of unspecified nerve at lower leg level, right leg, initial encounter	✓
S84.91XD	Injury of unspecified nerve at lower leg level, right leg, subsequent encounter	✓
S84.91XS	Injury of unspecified nerve at lower leg level, right leg, sequela	✓
S84.92	Injury of unspecified nerve at lower leg level, left leg	—
S84.92XA	Injury of unspecified nerve at lower leg level, left leg, initial encounter	✓
S84.92XD	Injury of unspecified nerve at lower leg level, left leg, subsequent encounter	✓
S84.92XS	Injury of unspecified nerve at lower leg level, left leg, sequela	✓
S84.801	Injury of other nerves at lower leg level, right leg	—
S84.801A	Injury of other nerves at lower leg level, right leg, initial encounter	✓
S84.801D	Injury of other nerves at lower leg level, right leg, subsequent encounter	✓
S84.801S	Injury of other nerves at lower leg level, right leg, sequela	✓
S84.802	Injury of other nerves at lower leg level, left leg	—
S84.802A	Injury of other nerves at lower leg level, left leg, initial encounter	✓
S84.802D	Injury of other nerves at lower leg level, left leg, subsequent encounter	✓
S84.802S	Injury of other nerves at lower leg level, left leg, sequela	✓
S84.809	Injury of other nerves at lower leg level, unspecified leg	—
S84.809A	Injury of other nerves at lower leg level, unspecified leg, initial encounter	✓
S84.809D	Injury of other nerves at lower leg level, unspecified leg, subsequent encounter	✓
S84.809S	Injury of other nerves at lower leg level, unspecified leg, sequela	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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