2017/18 ICD-10-CM Diagnosis Code G73.1

Lambert-Eaton syndrome in neoplastic disease

ICD-10-CM Coding Rules
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 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
    )
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 G73.1. 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.
  • Lambert-Eaton syndrome not associated with neoplasm (
    ICD-10-CM Diagnosis Code G70.80

    Lambert-Eaton syndrome, unspecified

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Lambert-Eaton syndrome NOS
    G70.80-
    ICD-10-CM Diagnosis Code G70.81

    Lambert-Eaton syndrome in disease classified elsewhere

      2016 2017 2018 Billable/Specific Code Manifestation Code
    Code First
    • underlying disease
    Type 1 Excludes
    • Lambert-Eaton syndrome in neoplastic disease (G73.1)
    G70.81
    )
The following code(s) above G73.1 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 G73.1:
  • G00-G99
    2018 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
Approximate Synonyms Clinical Information ICD-10-CM G73.1 is grouped within Diagnostic Related Group(s) (MS-DRG v35.0):

Convert G73.1 to ICD-9-CM

Code History
Code annotations containing back-references to G73.1:

Diagnosis Index entries containing back-references to G73.1:

ICD-10-CM Codes Adjacent To G73.1
G72.2 Myopathy due to other toxic agents
G72.3 Periodic paralysis
G72.4 Inflammatory and immune myopathies, not elsewhere classified
G72.41 Inclusion body myositis [IBM]
G72.49 Other inflammatory and immune myopathies, not elsewhere classified
G72.8 Other specified myopathies
G72.81 Critical illness myopathy
G72.89 Other specified myopathies
G72.9 Myopathy, unspecified
G73 Disorders of myoneural junction and muscle in diseases classified elsewhere
G73.1 Lambert-Eaton syndrome in neoplastic disease
G73.3 Myasthenic syndromes in other diseases classified elsewhere
G73.7 Myopathy in diseases classified elsewhere
G80 Cerebral palsy
G80.0 Spastic quadriplegic cerebral palsy
G80.1 Spastic diplegic cerebral palsy
G80.2 Spastic hemiplegic cerebral palsy
G80.3 Athetoid cerebral palsy
G80.4 Ataxic cerebral palsy
G80.8 Other cerebral palsy
G80.9 Cerebral palsy, unspecified

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