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ICD-10-CM Codes
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G00-G99
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G50-G59
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G56-
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2023 ICD-10-CM Diagnosis Code G56.21
2023 ICD-10-CM Diagnosis Code G56.21
Lesion of ulnar nerve, right upper limb
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- G56.21 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM G56.21 became effective on October 1, 2022.
- This is the American ICD-10-CM version of G56.21 - other international versions of ICD-10 G56.21 may differ.
The following code(s) above
G56.21 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
G56.21:
- G00-G99
2023 ICD-10-CM Range G00-G99
Diseases of the nervous systemType 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)
- G50-G59
2023 ICD-10-CM Range G50-G59
Nerve, nerve root and plexus disordersType 1 Excludes- current traumatic nerve, nerve root and plexus disorders - see Injury, nerve by body region
- neuralgia NOS (M79.2)
- neuritis NOS (M79.2)
- peripheral neuritis in pregnancy (O26.82-)
- radiculitis NOS (M54.1-)
- G56
ICD-10-CM Diagnosis Code G56
Mononeuropathies of upper limb
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Type 1 Excludes- current traumatic nerve disorder - see nerve injury by body region
- G56.2
ICD-10-CM Diagnosis Code G56.2
Lesion of ulnar nerve
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
- Bilateral guyons canal syndrome
- Bilateral ulnar nerve entrapment
- Bilateral ulnar nerve entrapment at elbow
- Bilateral ulnar neuropathy
- Lesion of left ulnar nerve
- Neuritis of right ulnar nerve
- R guyons canal syndrome
- Right tardy ulnar nerve palsy
- Right ulnar nerve entrapment
- Right ulnar nerve lesion
- Right ulnar nerve palsy, tardy
- Right ulnar nerve syndrome
- Right ulnar neuritis
- Right ulnar neuropathy
- Right ulnar neuropathy at elbow
- Ulnar nerve entrapment at bilateral elbows
- Ulnar nerve entrapment at bilateral wrists
- Ulnar nerve entrapment at right elbow
- Ulnar nerve entrapment at right wrist
- Ulnar nerve syndrome
- Ulnar neuropathy of right arm
ICD-10-CM G56.21 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
- 073 Cranial and peripheral nerve disorders with mcc
- 074 Cranial and peripheral nerve disorders without mcc
Convert G56.21 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
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
ICD-10-CM Codes Adjacent To G56.21
G56.03 …… bilateral upper limbs
G56.1 Other lesions of median nerve
G56.10 …… unspecified upper limb
G56.13 …… bilateral upper limbs
G56.2 Lesion of ulnar nerve
G56.20 …… unspecified upper limb
G56.21
…… right upper limb
G56.23 …… bilateral upper limbs
G56.3 Lesion of radial nerve
G56.30 …… unspecified upper limb
G56.33 …… bilateral upper limbs
G56.4 Causalgia of upper limb
G56.40 Causalgia of unspecified upper limb
G56.41 Causalgia of right upper limb
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
