MS-DRG · FY 2026 v43.0
MS-DRG 73 – Cranial and Peripheral Nerve Disorders with MCC
A Medical DRG in MDC 01 (Diseases & Disorders of the Nervous System). Inpatient cases group to DRG 73 when the ICD-10-CM principal diagnosis is one of the 378 codes listed below and a secondary diagnosis on the major complication or comorbidity (MCC) list is present. Its FY 2026 relative weight is 1.6043 with a geometric mean length of stay of 4.1 days.
Medical DRG – assigned by principal diagnosis✓ Official CMS v43.0 dataset
1.6043
Relative Weight
4.1
Geometric Mean LOS (days)
5.8
Arithmetic Mean LOS (days)
378
Principal Diagnosis Codes
Severity family
DRG 73with MCCWeight 1.6043 · GMLOS 4.1 daysDRG 74without MCCWeight 1.0308 · GMLOS 2.8 days
How a case is assigned to DRG 73
The grouper first assigns the case to MDC 01 from the principal diagnosis and finds no qualifying operating-room procedure (this is a Medical DRG; ICD-10-PCS codes do not drive assignment here), then applies the severity split from secondary diagnoses: with MCC → 73; without MCC → 74.
ICD-10-CM
Principal Diagnosis Codes 378 codes · 44 categories
378 of 378 shown
B02 Zoster [herpes zoster]5 codes
B06 Rubella [German measles]1 code
- B06.00 Rubella with neurological complication, unspecified
B26 Mumps1 code
- B26.84 Mumps polyneuropathy
E08 Diabetes mellitus due to underlying condition7 codes
- E08.40 Diabetes mellitus due to underlying condition with diabetic neuropathy, unspecified
- E08.41 Diabetes mellitus due to underlying condition with diabetic mononeuropathy
- E08.42 Diabetes mellitus due to underlying condition with diabetic polyneuropathy
- E08.43 Diabetes mellitus due to underlying condition with diabetic autonomic (poly)neuropathy
- E08.44 Diabetes mellitus due to underlying condition with diabetic amyotrophy
- E08.49 Diabetes mellitus due to underlying condition with other diabetic neurological complication
- E08.610 Diabetes mellitus due to underlying condition with diabetic neuropathic arthropathy
E09 Drug or chemical induced diabetes mellitus7 codes
- E09.40 Drug or chemical induced diabetes mellitus with neurological complications with diabetic neuropathy, unspecified
- E09.41 Drug or chemical induced diabetes mellitus with neurological complications with diabetic mononeuropathy
- E09.42 Drug or chemical induced diabetes mellitus with neurological complications with diabetic polyneuropathy
- E09.43 Drug or chemical induced diabetes mellitus with neurological complications with diabetic autonomic (poly)neuropathy
- E09.44 Drug or chemical induced diabetes mellitus with neurological complications with diabetic amyotrophy
- E09.49 Drug or chemical induced diabetes mellitus with neurological complications with other diabetic neurological complication
- E09.610 Drug or chemical induced diabetes mellitus with diabetic neuropathic arthropathy
E10 Type 1 diabetes mellitus7 codes
- E10.40 Type 1 diabetes mellitus with diabetic neuropathy, unspecified
- E10.41 Type 1 diabetes mellitus with diabetic mononeuropathy
- E10.42 Type 1 diabetes mellitus with diabetic polyneuropathy
- E10.43 Type 1 diabetes mellitus with diabetic autonomic (poly)neuropathy
- E10.44 Type 1 diabetes mellitus with diabetic amyotrophy
- E10.49 Type 1 diabetes mellitus with other diabetic neurological complication
- E10.610 Type 1 diabetes mellitus with diabetic neuropathic arthropathy
E11 Type 2 diabetes mellitus7 codes
- E11.40 Type 2 diabetes mellitus with diabetic neuropathy, unspecified
- E11.41 Type 2 diabetes mellitus with diabetic mononeuropathy
- E11.42 Type 2 diabetes mellitus with diabetic polyneuropathy
- E11.43 Type 2 diabetes mellitus with diabetic autonomic (poly)neuropathy
- E11.44 Type 2 diabetes mellitus with diabetic amyotrophy
- E11.49 Type 2 diabetes mellitus with other diabetic neurological complication
- E11.610 Type 2 diabetes mellitus with diabetic neuropathic arthropathy
E13 Other specified diabetes mellitus7 codes
- E13.40 Other specified diabetes mellitus with diabetic neuropathy, unspecified
- E13.41 Other specified diabetes mellitus with diabetic mononeuropathy
- E13.42 Other specified diabetes mellitus with diabetic polyneuropathy
- E13.43 Other specified diabetes mellitus with diabetic autonomic (poly)neuropathy
- E13.44 Other specified diabetes mellitus with diabetic amyotrophy
- E13.49 Other specified diabetes mellitus with other diabetic neurological complication
- E13.610 Other specified diabetes mellitus with diabetic neuropathic arthropathy
G13 Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere2 codes
G50 Disorders of trigeminal nerve4 codes
G51 Facial nerve disorders10 codes
- G51.0 Bell's palsy
- G51.1 Geniculate ganglionitis
- G51.2 Melkersson's syndrome
- G51.31 Clonic hemifacial spasm, right
- G51.32 Clonic hemifacial spasm, left
- G51.33 Clonic hemifacial spasm, bilateral
- G51.39 Clonic hemifacial spasm, unspecified
- G51.4 Facial myokymia
- G51.8 Other disorders of facial nerve
- G51.9 Disorder of facial nerve, unspecified
G52 Disorders of other cranial nerves7 codes
G53 Cranial nerve disorders in diseases classified elsewhere1 code
- G53 Cranial nerve disorders in diseases classified elsewhere
G54 Nerve root and plexus disorders10 codes
- G54.0 Brachial plexus disorders
- G54.1 Lumbosacral plexus disorders
- G54.2 Cervical root disorders, not elsewhere classified
- G54.3 Thoracic root disorders, not elsewhere classified
- G54.4 Lumbosacral root disorders, not elsewhere classified
- G54.5 Neuralgic amyotrophy
- G54.6 Phantom limb syndrome with pain
- G54.7 Phantom limb syndrome without pain
- G54.8 Other nerve root and plexus disorders
- G54.9 Nerve root and plexus disorder, unspecified
G55 Nerve root and plexus compressions in diseases classified elsewhere1 code
- G55 Nerve root and plexus compressions in diseases classified elsewhere
G56 Mononeuropathies of upper limb28 codes
- G56.00 Carpal tunnel syndrome, unspecified upper limb
- G56.01 Carpal tunnel syndrome, right upper limb
- G56.02 Carpal tunnel syndrome, left upper limb
- G56.03 Carpal tunnel syndrome, bilateral upper limbs
- G56.10 Other lesions of median nerve, unspecified upper limb
- G56.11 Other lesions of median nerve, right upper limb
- G56.12 Other lesions of median nerve, left upper limb
- G56.13 Other lesions of median nerve, bilateral upper limbs
- G56.20 Lesion of ulnar nerve, unspecified upper limb
- G56.21 Lesion of ulnar nerve, right upper limb
- G56.22 Lesion of ulnar nerve, left upper limb
- G56.23 Lesion of ulnar nerve, bilateral upper limbs
- G56.30 Lesion of radial nerve, unspecified upper limb
- G56.31 Lesion of radial nerve, right upper limb
- G56.32 Lesion of radial nerve, left upper limb
- G56.33 Lesion of radial nerve, bilateral upper limbs
- G56.40 Causalgia of unspecified upper limb
- G56.41 Causalgia of right upper limb
- G56.42 Causalgia of left upper limb
- G56.43 Causalgia of bilateral upper limbs
- G56.80 Other specified mononeuropathies of unspecified upper limb
- G56.81 Other specified mononeuropathies of right upper limb
- G56.82 Other specified mononeuropathies of left upper limb
- G56.83 Other specified mononeuropathies of bilateral upper limbs
- G56.90 Unspecified mononeuropathy of unspecified upper limb
- G56.91 Unspecified mononeuropathy of right upper limb
- G56.92 Unspecified mononeuropathy of left upper limb
- G56.93 Unspecified mononeuropathy of bilateral upper limbs
G57 Mononeuropathies of lower limb40 codes
- G57.00 Lesion of sciatic nerve, unspecified lower limb
- G57.01 Lesion of sciatic nerve, right lower limb
- G57.02 Lesion of sciatic nerve, left lower limb
- G57.03 Lesion of sciatic nerve, bilateral lower limbs
- G57.10 Meralgia paresthetica, unspecified lower limb
- G57.11 Meralgia paresthetica, right lower limb
- G57.12 Meralgia paresthetica, left lower limb
- G57.13 Meralgia paresthetica, bilateral lower limbs
- G57.20 Lesion of femoral nerve, unspecified lower limb
- G57.21 Lesion of femoral nerve, right lower limb
- G57.22 Lesion of femoral nerve, left lower limb
- G57.23 Lesion of femoral nerve, bilateral lower limbs
- G57.30 Lesion of lateral popliteal nerve, unspecified lower limb
- G57.31 Lesion of lateral popliteal nerve, right lower limb
- G57.32 Lesion of lateral popliteal nerve, left lower limb
- G57.33 Lesion of lateral popliteal nerve, bilateral lower limbs
- G57.40 Lesion of medial popliteal nerve, unspecified lower limb
- G57.41 Lesion of medial popliteal nerve, right lower limb
- G57.42 Lesion of medial popliteal nerve, left lower limb
- G57.43 Lesion of medial popliteal nerve, bilateral lower limbs
- G57.50 Tarsal tunnel syndrome, unspecified lower limb
- G57.51 Tarsal tunnel syndrome, right lower limb
- G57.52 Tarsal tunnel syndrome, left lower limb
- G57.53 Tarsal tunnel syndrome, bilateral lower limbs
- G57.60 Lesion of plantar nerve, unspecified lower limb
- G57.61 Lesion of plantar nerve, right lower limb
- G57.62 Lesion of plantar nerve, left lower limb
- G57.63 Lesion of plantar nerve, bilateral lower limbs
- G57.70 Causalgia of unspecified lower limb
- G57.71 Causalgia of right lower limb
- G57.72 Causalgia of left lower limb
- G57.73 Causalgia of bilateral lower limbs
- G57.80 Other specified mononeuropathies of unspecified lower limb
- G57.81 Other specified mononeuropathies of right lower limb
- G57.82 Other specified mononeuropathies of left lower limb
- G57.83 Other specified mononeuropathies of bilateral lower limbs
- G57.90 Unspecified mononeuropathy of unspecified lower limb
- G57.91 Unspecified mononeuropathy of right lower limb
- G57.92 Unspecified mononeuropathy of left lower limb
- G57.93 Unspecified mononeuropathy of bilateral lower limbs
G58 Other mononeuropathies4 codes
G59 Mononeuropathy in diseases classified elsewhere1 code
- G59 Mononeuropathy in diseases classified elsewhere
G60 Hereditary and idiopathic neuropathy5 codes
G61 Inflammatory polyneuropathy5 codes
G62 Other and unspecified polyneuropathies7 codes
G63 Polyneuropathy in diseases classified elsewhere1 code
- G63 Polyneuropathy in diseases classified elsewhere
G64 Other disorders of peripheral nervous system1 code
- G64 Other disorders of peripheral nervous system
G65 Sequelae of inflammatory and toxic polyneuropathies3 codes
G70 Myasthenia gravis and other myoneural disorders4 codes
G83 Other paralytic syndromes1 code
- G83.4 Cauda equina syndrome
G90 Disorders of autonomic nervous system18 codes
- G90.01 Carotid sinus syncope
- G90.09 Other idiopathic peripheral autonomic neuropathy
- G90.2 Horner's syndrome
- G90.4 Autonomic dysreflexia
- G90.50 Complex regional pain syndrome I, unspecified
- G90.511 Complex regional pain syndrome I of right upper limb
- G90.512 Complex regional pain syndrome I of left upper limb
- G90.513 Complex regional pain syndrome I of upper limb, bilateral
- G90.519 Complex regional pain syndrome I of unspecified upper limb
- G90.521 Complex regional pain syndrome I of right lower limb
- G90.522 Complex regional pain syndrome I of left lower limb
- G90.523 Complex regional pain syndrome I of lower limb, bilateral
- G90.529 Complex regional pain syndrome I of unspecified lower limb
- G90.59 Complex regional pain syndrome I of other specified site
- G90.81 Serotonin syndrome
- G90.89 Other disorders of autonomic nervous system
- G90.9 Disorder of the autonomic nervous system, unspecified
- G90.B LMNB1-related autosomal dominant leukodystrophy
G99 Other disorders of nervous system in diseases classified elsewhere1 code
- G99.0 Autonomic neuropathy in diseases classified elsewhere
M21 Other acquired deformities of limbs12 codes
- M21.331 Wrist drop, right wrist
- M21.332 Wrist drop, left wrist
- M21.339 Wrist drop, unspecified wrist
- M21.511 Acquired clawhand, right hand
- M21.512 Acquired clawhand, left hand
- M21.519 Acquired clawhand, unspecified hand
- M21.521 Acquired clubhand, right hand
- M21.522 Acquired clubhand, left hand
- M21.529 Acquired clubhand, unspecified hand
- M21.531 Acquired clawfoot, right foot
- M21.532 Acquired clawfoot, left foot
- M21.539 Acquired clawfoot, unspecified foot
M34 Systemic sclerosis [scleroderma]1 code
- M34.83 Systemic sclerosis with polyneuropathy
M53 Other and unspecified dorsopathies, not elsewhere classified2 codes
M54 Dorsalgia5 codes
M79 Other and unspecified soft tissue disorders, not elsewhere classified1 code
- M79.2 Neuralgia and neuritis, unspecified
S04 Injury of cranial nerve25 codes
- S04.10XA Injury of oculomotor nerve, unspecified side, initial encounter
- S04.11XA Injury of oculomotor nerve, right side, initial encounter
- S04.12XA Injury of oculomotor nerve, left side, initial encounter
- S04.20XA Injury of trochlear nerve, unspecified side, initial encounter
- S04.21XA Injury of trochlear nerve, right side, initial encounter
- S04.22XA Injury of trochlear nerve, left side, initial encounter
- S04.30XA Injury of trigeminal nerve, unspecified side, initial encounter
- S04.31XA Injury of trigeminal nerve, right side, initial encounter
- S04.32XA Injury of trigeminal nerve, left side, initial encounter
- S04.40XA Injury of abducent nerve, unspecified side, initial encounter
- S04.41XA Injury of abducent nerve, right side, initial encounter
- S04.42XA Injury of abducent nerve, left side, initial encounter
- S04.50XA Injury of facial nerve, unspecified side, initial encounter
- S04.51XA Injury of facial nerve, right side, initial encounter
- S04.52XA Injury of facial nerve, left side, initial encounter
- S04.70XA Injury of accessory nerve, unspecified side, initial encounter
- S04.71XA Injury of accessory nerve, right side, initial encounter
- S04.72XA Injury of accessory nerve, left side, initial encounter
- S04.811A Injury of olfactory [1st ] nerve, right side, initial encounter
- S04.812A Injury of olfactory [1st ] nerve, left side, initial encounter
- S04.819A Injury of olfactory [1st ] nerve, unspecified side, initial encounter
- S04.891A Injury of other cranial nerves, right side, initial encounter
- S04.892A Injury of other cranial nerves, left side, initial encounter
- S04.899A Injury of other cranial nerves, unspecified side, initial encounter
- S04.9XXA Injury of unspecified cranial nerve, initial encounter
S14 Injury of nerves and spinal cord at neck level6 codes
- S14.2XXA Injury of nerve root of cervical spine, initial encounter
- S14.3XXA Injury of brachial plexus, initial encounter
- S14.4XXA Injury of peripheral nerves of neck, initial encounter
- S14.5XXA Injury of cervical sympathetic nerves, initial encounter
- S14.8XXA Injury of other specified nerves of neck, initial encounter
- S14.9XXA Injury of unspecified nerves of neck, initial encounter
S24 Injury of nerves and spinal cord at thorax level5 codes
- S24.2XXA Injury of nerve root of thoracic spine, initial encounter
- S24.3XXA Injury of peripheral nerves of thorax, initial encounter
- S24.4XXA Injury of thoracic sympathetic nervous system, initial encounter
- S24.8XXA Injury of other specified nerves of thorax, initial encounter
- S24.9XXA Injury of unspecified nerve of thorax, initial encounter
S34 Injury of lumbar and sacral spinal cord and nerves at abdomen, lower back and pelvis level7 codes
- S34.21XA Injury of nerve root of lumbar spine, initial encounter
- S34.22XA Injury of nerve root of sacral spine, initial encounter
- S34.4XXA Injury of lumbosacral plexus, initial encounter
- S34.5XXA Injury of lumbar, sacral and pelvic sympathetic nerves, initial encounter
- S34.6XXA Injury of peripheral nerve(s) at abdomen, lower back and pelvis level, initial encounter
- S34.8XXA Injury of other nerves at abdomen, lower back and pelvis level, initial encounter
- S34.9XXA Injury of unspecified nerves at abdomen, lower back and pelvis level, initial encounter
S44 Injury of nerves at shoulder and upper arm level24 codes
- S44.00XA Injury of ulnar nerve at upper arm level, unspecified arm, initial encounter
- S44.01XA Injury of ulnar nerve at upper arm level, right arm, initial encounter
- S44.02XA Injury of ulnar nerve at upper arm level, left arm, initial encounter
- S44.10XA Injury of median nerve at upper arm level, unspecified arm, initial encounter
- S44.11XA Injury of median nerve at upper arm level, right arm, initial encounter
- S44.12XA Injury of median nerve at upper arm level, left arm, initial encounter
- S44.20XA Injury of radial nerve at upper arm level, unspecified arm, initial encounter
- S44.21XA Injury of radial nerve at upper arm level, right arm, initial encounter
- S44.22XA Injury of radial nerve at upper arm level, left arm, initial encounter
- S44.30XA Injury of axillary nerve, unspecified arm, initial encounter
- S44.31XA Injury of axillary nerve, right arm, initial encounter
- S44.32XA Injury of axillary nerve, left arm, initial encounter
- S44.40XA Injury of musculocutaneous nerve, unspecified arm, initial encounter
- S44.41XA Injury of musculocutaneous nerve, right arm, initial encounter
- S44.42XA Injury of musculocutaneous nerve, left arm, initial encounter
- S44.50XA Injury of cutaneous sensory nerve at shoulder and upper arm level, unspecified arm, initial encounter
- S44.51XA Injury of cutaneous sensory nerve at shoulder and upper arm level, right arm, initial encounter
- S44.52XA Injury of cutaneous sensory nerve at shoulder and upper arm level, left arm, initial encounter
- S44.8X1A Injury of other nerves at shoulder and upper arm level, right arm, initial encounter
- S44.8X2A Injury of other nerves at shoulder and upper arm level, left arm, initial encounter
- S44.8X9A Injury of other nerves at shoulder and upper arm level, unspecified arm, initial encounter
- S44.90XA Injury of unspecified nerve at shoulder and upper arm level, unspecified arm, initial encounter
- S44.91XA Injury of unspecified nerve at shoulder and upper arm level, right arm, initial encounter
- S44.92XA Injury of unspecified nerve at shoulder and upper arm level, left arm, initial encounter
S54 Injury of nerves at forearm level18 codes
- S54.00XA Injury of ulnar nerve at forearm level, unspecified arm, initial encounter
- S54.01XA Injury of ulnar nerve at forearm level, right arm, initial encounter
- S54.02XA Injury of ulnar nerve at forearm level, left arm, initial encounter
- S54.10XA Injury of median nerve at forearm level, unspecified arm, initial encounter
- S54.11XA Injury of median nerve at forearm level, right arm, initial encounter
- S54.12XA Injury of median nerve at forearm level, left arm, initial encounter
- S54.20XA Injury of radial nerve at forearm level, unspecified arm, initial encounter
- S54.21XA Injury of radial nerve at forearm level, right arm, initial encounter
- S54.22XA Injury of radial nerve at forearm level, left arm, initial encounter
- S54.30XA Injury of cutaneous sensory nerve at forearm level, unspecified arm, initial encounter
- S54.31XA Injury of cutaneous sensory nerve at forearm level, right arm, initial encounter
- S54.32XA Injury of cutaneous sensory nerve at forearm level, left arm, initial encounter
- S54.8X1A Injury of other nerves at forearm level, right arm, initial encounter
- S54.8X2A Injury of other nerves at forearm level, left arm, initial encounter
- S54.8X9A Injury of other nerves at forearm level, unspecified arm, initial encounter
- S54.90XA Injury of unspecified nerve at forearm level, unspecified arm, initial encounter
- S54.91XA Injury of unspecified nerve at forearm level, right arm, initial encounter
- S54.92XA Injury of unspecified nerve at forearm level, left arm, initial encounter
S64 Injury of nerves at wrist and hand level28 codes
- S64.00XA Injury of ulnar nerve at wrist and hand level of unspecified arm, initial encounter
- S64.01XA Injury of ulnar nerve at wrist and hand level of right arm, initial encounter
- S64.02XA Injury of ulnar nerve at wrist and hand level of left arm, initial encounter
- S64.10XA Injury of median nerve at wrist and hand level of unspecified arm, initial encounter
- S64.11XA Injury of median nerve at wrist and hand level of right arm, initial encounter
- S64.12XA Injury of median nerve at wrist and hand level of left arm, initial encounter
- S64.20XA Injury of radial nerve at wrist and hand level of unspecified arm, initial encounter
- S64.21XA Injury of radial nerve at wrist and hand level of right arm, initial encounter
- S64.22XA Injury of radial nerve at wrist and hand level of left arm, initial encounter
- S64.30XA Injury of digital nerve of unspecified thumb, initial encounter
- S64.31XA Injury of digital nerve of right thumb, initial encounter
- S64.32XA Injury of digital nerve of left thumb, initial encounter
- S64.40XA Injury of digital nerve of unspecified finger, initial encounter
- S64.490A Injury of digital nerve of right index finger, initial encounter
- S64.491A Injury of digital nerve of left index finger, initial encounter
- S64.492A Injury of digital nerve of right middle finger, initial encounter
- S64.493A Injury of digital nerve of left middle finger, initial encounter
- S64.494A Injury of digital nerve of right ring finger, initial encounter
- S64.495A Injury of digital nerve of left ring finger, initial encounter
- S64.496A Injury of digital nerve of right little finger, initial encounter
- S64.497A Injury of digital nerve of left little finger, initial encounter
- S64.498A Injury of digital nerve of other finger, initial encounter
- S64.8X1A Injury of other nerves at wrist and hand level of right arm, initial encounter
- S64.8X2A Injury of other nerves at wrist and hand level of left arm, initial encounter
- S64.8X9A Injury of other nerves at wrist and hand level of unspecified arm, initial encounter
- S64.90XA Injury of unspecified nerve at wrist and hand level of unspecified arm, initial encounter
- S64.91XA Injury of unspecified nerve at wrist and hand level of right arm, initial encounter
- S64.92XA Injury of unspecified nerve at wrist and hand level of left arm, initial encounter
S74 Injury of nerves at hip and thigh level15 codes
- S74.00XA Injury of sciatic nerve at hip and thigh level, unspecified leg, initial encounter
- S74.01XA Injury of sciatic nerve at hip and thigh level, right leg, initial encounter
- S74.02XA Injury of sciatic nerve at hip and thigh level, left leg, initial encounter
- S74.10XA Injury of femoral nerve at hip and thigh level, unspecified leg, initial encounter
- S74.11XA Injury of femoral nerve at hip and thigh level, right leg, initial encounter
- S74.12XA Injury of femoral nerve at hip and thigh level, left leg, initial encounter
- S74.20XA Injury of cutaneous sensory nerve at hip and thigh level, unspecified leg, initial encounter
- S74.21XA Injury of cutaneous sensory nerve at hip and thigh level, right leg, initial encounter
- S74.22XA Injury of cutaneous sensory nerve at hip and thigh level, left leg, initial encounter
- S74.8X1A Injury of other nerves at hip and thigh level, right leg, initial encounter
- S74.8X2A Injury of other nerves at hip and thigh level, left leg, initial encounter
- S74.8X9A Injury of other nerves at hip and thigh level, unspecified leg, initial encounter
- S74.90XA Injury of unspecified nerve at hip and thigh level, unspecified leg, initial encounter
- S74.91XA Injury of unspecified nerve at hip and thigh level, right leg, initial encounter
- S74.92XA Injury of unspecified nerve at hip and thigh level, left leg, initial encounter
S84 Injury of nerves at lower leg level15 codes
- S84.00XA Injury of tibial nerve at lower leg level, unspecified leg, initial encounter
- S84.01XA Injury of tibial nerve at lower leg level, right leg, initial encounter
- S84.02XA Injury of tibial nerve at lower leg level, left leg, initial encounter
- S84.10XA Injury of peroneal nerve at lower leg level, unspecified leg, initial encounter
- S84.11XA Injury of peroneal nerve at lower leg level, right leg, initial encounter
- S84.12XA Injury of peroneal nerve at lower leg level, left leg, initial encounter
- S84.20XA Injury of cutaneous sensory nerve at lower leg level, unspecified leg, initial encounter
- S84.21XA Injury of cutaneous sensory nerve at lower leg level, right leg, initial encounter
- S84.22XA Injury of cutaneous sensory nerve at lower leg level, left leg, initial encounter
- S84.801A Injury of other nerves at lower leg level, right leg, initial encounter
- S84.802A Injury of other nerves at lower leg level, left leg, initial encounter
- S84.809A Injury of other nerves at lower leg level, unspecified leg, initial encounter
- S84.90XA Injury of unspecified nerve at lower leg level, unspecified leg, initial encounter
- S84.91XA Injury of unspecified nerve at lower leg level, right leg, initial encounter
- S84.92XA Injury of unspecified nerve at lower leg level, left leg, initial encounter
S94 Injury of nerves at ankle and foot level18 codes
- S94.00XA Injury of lateral plantar nerve, unspecified leg, initial encounter
- S94.01XA Injury of lateral plantar nerve, right leg, initial encounter
- S94.02XA Injury of lateral plantar nerve, left leg, initial encounter
- S94.10XA Injury of medial plantar nerve, unspecified leg, initial encounter
- S94.11XA Injury of medial plantar nerve, right leg, initial encounter
- S94.12XA Injury of medial plantar nerve, left leg, initial encounter
- S94.20XA Injury of deep peroneal nerve at ankle and foot level, unspecified leg, initial encounter
- S94.21XA Injury of deep peroneal nerve at ankle and foot level, right leg, initial encounter
- S94.22XA Injury of deep peroneal nerve at ankle and foot level, left leg, initial encounter
- S94.30XA Injury of cutaneous sensory nerve at ankle and foot level, unspecified leg, initial encounter
- S94.31XA Injury of cutaneous sensory nerve at ankle and foot level, right leg, initial encounter
- S94.32XA Injury of cutaneous sensory nerve at ankle and foot level, left leg, initial encounter
- S94.8X1A Injury of other nerves at ankle and foot level, right leg, initial encounter
- S94.8X2A Injury of other nerves at ankle and foot level, left leg, initial encounter
- S94.8X9A Injury of other nerves at ankle and foot level, unspecified leg, initial encounter
- S94.90XA Injury of unspecified nerve at ankle and foot level, unspecified leg, initial encounter
- S94.91XA Injury of unspecified nerve at ankle and foot level, right leg, initial encounter
- S94.92XA Injury of unspecified nerve at ankle and foot level, left leg, initial encounter
ICD-10-PCS
Procedure Codes
Procedure codes do not drive assignment for this DRG. DRG 73 is a Medical DRG, assigned from the principal diagnosis above.
Frequently Asked Questions
What is MS-DRG 73?
MS-DRG 73 (Cranial and Peripheral Nerve Disorders with MCC) is a medical DRG in MDC 01 (Diseases & Disorders of the Nervous System). Its FY 2026 relative weight is 1.6043 with a geometric mean length of stay of 4.1 days.
What is the difference between DRG 73, 74?
All 2 share the same base category; the severity of secondary diagnoses separates them: 73 (with MCC), 74 (without MCC). A major complication or comorbidity (MCC) places the case in the highest-weighted DRG of the family; a CC in the middle; neither in the lowest.
How many diagnosis codes group to DRG 73?
378 ICD-10-CM principal diagnosis codes group to this DRG, spanning 44 three-character categories.
What is the relative weight of DRG 73?
The FY 2026 relative weight of this DRG is 1.6043, meaning reimbursement of roughly 1.60 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.
← PreviousDRG 72 – Other Cerebrovascular Disorders without CC/MCCNext →DRG 74 – Cranial and Peripheral Nerve Disorders without MCC
Source: CMS ICD-10 MS-DRG v43.0 Definitions Manual and the FY 2026 IPPS Final Rule (Table 5), effective October 1, 2025 through September 30, 2026. We publish the DRG assignments as CMS defines them and add the navigation, search, and code links.
