ICD-10-CM Codes
G00-G99 Diseases of the nervous system
G60-G65 Polyneuropathies and other disorders of the peripheral nervous system
G63- Polyneuropathy in diseases classified elsewhere
2021 ICD-10-CM Diagnosis Code G63

2021 ICD-10-CM Diagnosis Code G63

Polyneuropathy in diseases classified elsewhere

2016

2017

2018

2019

2020

2021

Billable/Specific Code

Manifestation Code

G63 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2021 edition of ICD-10-CM G63 became effective on October 1, 2020.
This is the American ICD-10-CM version of G63 - other international versions of ICD-10 G63 may differ.

ICD-10-CM Coding Rules

G63 describes the manifestation of an underlying disease, not the disease itself.

Code First

Code First Help

Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.

underlying disease, such as:
amyloidosis (
ICD-10-CM Diagnosis Code E85
- E85 Amyloidosis
  - E85.0 Non-neuropathic heredofamilial amyloidosis
  - E85.1 Neuropathic heredofamilial amyloidosis
  - E85.2 Heredofamilial amyloidosis, unspecified
  - E85.3 Secondary systemic amyloidosis
  - E85.4 Organ-limited amyloidosis
  - E85.8 Other amyloidosis
    - E85.81 Light chain (AL) amyloidosis
    - E85.82 Wild-type transthyretin-related (ATTR) amyloi...
    - E85.89 Other amyloidosis
  - E85.9 Amyloidosis, unspecified
E85.-
)
endocrine disease, except diabetes (E00-E07
ICD-10-CM Range E00-E07
Disorders of thyroid gland
- E00 Congenital iodine-deficiency syndrome
- E01 Iodine-deficiency related thyroid disord...
- E02 Subclinical iodine-deficiency hypothyroi...
- E03 Other hypothyroidism
- E04 Other nontoxic goiter
- E05 Thyrotoxicosis [hyperthyroidism]
- E06 Thyroiditis
- E07 Other disorders of thyroid
, E15-E16
ICD-10-CM Range E15-E16
Other disorders of glucose regulation and pancreatic internal secretion
- E15 Nondiabetic hypoglycemic coma
- E16 Other disorders of pancreatic internal s...
,
ICD-10-CM Diagnosis Code E20
Hypoparathyroidism
Type 1 Excludes
- Di George's syndrome (D82.1)
- postprocedural hypoparathyroidism (E89.2)
- tetany NOS (R29.0)
- transitory neonatal hypoparathyroidism (P71.4)
E20
-
ICD-10-CM Diagnosis Code E34
Other endocrine disorders
Type 1 Excludes
- pseudohypoparathyroidism (E20.1)
E34
)
metabolic diseases (E70-E88
ICD-10-CM Range E70-E88
Metabolic disorders
Type 1 Excludes
- androgen insensitivity syndrome (E34.5-)
- congenital adrenal hyperplasia (E25.0)
- Ehlers-Danlos syndromes (Q79.6-)
- hemolytic anemias attributable to enzyme disorders (D55.-)
- Marfan's syndrome (Q87.4)
- 5-alpha-reductase deficiency (E29.1)
- E70 Disorders of aromatic amino-acid metabol...
- E71 Disorders of branched-chain amino-acid m...
- E72 Other disorders of amino-acid metabolism
- E73 Lactose intolerance
- E74 Other disorders of carbohydrate metaboli...
- E75 Disorders of sphingolipid metabolism and...
- E76 Disorders of glycosaminoglycan metabolis...
- E77 Disorders of glycoprotein metabolism
- E78 Disorders of lipoprotein metabolism and ...
- E79 Disorders of purine and pyrimidine metab...
- E80 Disorders of porphyrin and bilirubin met...
- E83 Disorders of mineral metabolism
- E84 Cystic fibrosis
- E85 Amyloidosis
- E86 Volume depletion
- E87 Other disorders of fluid, electrolyte an...
- E88 Other and unspecified metabolic disorder...
)
neoplasm (C00-D49
ICD-10-CM Range C00-D49
Neoplasms
- C00-C14 Malignant neoplasms of lip, oral cavity ...
- C15-C26 Malignant neoplasms of digestive organs
- C30-C39 Malignant neoplasms of respiratory and i...
- C40-C41 Malignant neoplasms of bone and articula...
- C43-C44 Melanoma and other malignant neoplasms o...
- C45-C49 Malignant neoplasms of mesothelial and s...
- C50-C50 Malignant neoplasms of breast
- C51-C58 Malignant neoplasms of female genital or...
- C60-C63 Malignant neoplasms of male genital orga...
- C64-C68 Malignant neoplasms of urinary tract
- C69-C72 Malignant neoplasms of eye, brain and ot...
- C73-C75 Malignant neoplasms of thyroid and other...
- C76-C80 Malignant neoplasms of ill-defined, othe...
- C7A-C7A Malignant neuroendocrine tumors
- C7B-C7B Secondary neuroendocrine tumors
- C81-C96 Malignant neoplasms of lymphoid, hematop...
- D00-D09 In situ neoplasms
- D10-D36 Benign neoplasms, except benign neuroend...
- D37-D48 Neoplasms of uncertain behavior, polycyt...
- D3A-D3A Benign neuroendocrine tumors
- D49-D49 Neoplasms of unspecified behavior
)
nutritional deficiency (
ICD-10-CM Diagnosis Code E40
Kwashiorkor
Applicable To
- Severe malnutrition with nutritional edema with dyspigmentation of skin and hair
Type 1 Excludes
- marasmic kwashiorkor (E42)
E40
-
ICD-10-CM Diagnosis Code E64
Sequelae of malnutrition and other nutritional deficiencies
Code First
- condition resulting from (sequela) of malnutrition and other nutritional deficiencies
Note
- This category is to be used to indicate conditions in categories E43, E44, E46, E50-E63 as the cause of sequelae, which are themselves classified elsewhere. The 'sequelae' include conditions specified as such; they also include the late effects of diseases classifiable to the above categories if the disease itself is no longer present
E64
)

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as G63. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

polyneuropathy (in):
diabetes mellitus (E08-E13
ICD-10-CM Range E08-E13
Diabetes mellitus
- E08 Diabetes mellitus due to underlying cond...
- E09 Drug or chemical induced diabetes mellit...
- E10 Type 1 diabetes mellitus
- E11 Type 2 diabetes mellitus
- E13 Other specified diabetes mellitus
with .42)
diphtheria (
ICD-10-CM Diagnosis Code A36.83
Diphtheritic polyneuritis
A36.83
)
infectious mononucleosis (
ICD-10-CM Diagnosis Code B27.0
Gammaherpesviral mononucleosis
Applicable To
- Mononucleosis due to Epstein-Barr virus
B27.0-
ICD-10-CM Diagnosis Code B27.9
Infectious mononucleosis, unspecified
B27.9
with 1)
Lyme disease (
ICD-10-CM Diagnosis Code A69.22
Other neurologic disorders in Lyme disease
Applicable To
- Cranial neuritis
- Meningoencephalitis
- Polyneuropathy
A69.22
)
mumps (
ICD-10-CM Diagnosis Code B26.84
Mumps polyneuropathy
B26.84
)
postherpetic (
ICD-10-CM Diagnosis Code B02.23
Postherpetic polyneuropathy
B02.23
)
rheumatoid arthritis (
ICD-10-CM Diagnosis Code M05.5
Rheumatoid polyneuropathy with rheumatoid arthritis
M05.5-
)
scleroderma (
ICD-10-CM Diagnosis Code M34.83
Systemic sclerosis with polyneuropathy
M34.83
)
systemic lupus erythematosus (
ICD-10-CM Diagnosis Code M32.19
Other organ or system involvement in systemic lupus erythematosus
M32.19
)

The following code(s) above G63 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to G63:

G00-G99
2021 ICD-10-CM Range G00-G99
Diseases of the nervous system
Type 2 Excludes
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Diseases of the nervous system
G60-G65
2021 ICD-10-CM Range G60-G65
Polyneuropathies and other disorders of the peripheral nervous system
Type 1 Excludes
- neuralgia NOS (M79.2)
- neuritis NOS (M79.2)
- peripheral neuritis in pregnancy (O26.82-)
- radiculitis NOS (M54.10)
Polyneuropathies and other disorders of the peripheral nervous system

Approximate Synonyms

Gouty neuritis
Neuropathy due to vitamin b12 deficiency
Paraneoplastic polyneuropathy
Peripheral nerve disorder due to vit b12 deficiency
Polyneuropathy (multiple nerve disorder)
Polyneuropathy due to collagen vascular disease
Polyneuropathy due to vitamin b deficiency
Polyneuropathy in collagen vascular disease
Polyneuropathy in collagen vascular disease with polyarteritis
Polyneuropathy in polyarteritis nodosa

ICD-10-CM G63 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):

073 Cranial and peripheral nerve disorders with mcc
074 Cranial and peripheral nerve disorders without mcc

Convert G63 to ICD-9-CM

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change

ICD-10-CM Codes Adjacent To G63

G61.9 Inflammatory polyneuropathy, unspecified

G62 Other and unspecified polyneuropathies

G62.0 Drug-induced polyneuropathy

G62.1 Alcoholic polyneuropathy

G62.2 Polyneuropathy due to other toxic agents

G62.8 Other specified polyneuropathies

G62.81 Critical illness polyneuropathy

G62.82 Radiation-induced polyneuropathy

G62.89 Other specified polyneuropathies

G62.9 Polyneuropathy, unspecified

G63 Polyneuropathy in diseases classified elsewhere

G64 Other disorders of peripheral nervous system

G65 Sequelae of inflammatory and toxic polyneuropathies

G65.0 Sequelae of Guillain-Barré syndrome

G65.1 Sequelae of other inflammatory polyneuropathy

G65.2 Sequelae of toxic polyneuropathy

G70 Myasthenia gravis and other myoneural disorders

G70.0 Myasthenia gravis

G70.00 …… without (acute) exacerbation

G70.01 …… with (acute) exacerbation

G70.1 Toxic myoneural disorders

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2021 ICD-10-CM Diagnosis Code G63

Polyneuropathy in diseases classified elsewhere

Disorders of thyroid gland

Other disorders of glucose regulation and pancreatic internal secretion

Hypoparathyroidism

Other endocrine disorders

Metabolic disorders

Neoplasms

Kwashiorkor

Sequelae of malnutrition and other nutritional deficiencies

Diabetes mellitus

Diphtheritic polyneuritis

Gammaherpesviral mononucleosis

Infectious mononucleosis, unspecified

Other neurologic disorders in Lyme disease

Mumps polyneuropathy

Postherpetic polyneuropathy

Rheumatoid polyneuropathy with rheumatoid arthritis

Systemic sclerosis with polyneuropathy

Other organ or system involvement in systemic lupus erythematosus

Diseases of the nervous system

Polyneuropathies and other disorders of the peripheral nervous system