G56.4
Non-billableCausalgia of upper limb
Causalgia of upper limb
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Complex regional pain syndrome II of upper limb
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- 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-)
- current traumatic nerve disorder - see nerve injury by body region
- complex regional pain syndrome I of lower limb (G90.52-)
- complex regional pain syndrome I of upper limb (G90.51-)
- complex regional pain syndrome II of lower limb (G57.7-)
- reflex sympathetic dystrophy of lower limb (G90.52-)
- reflex sympathetic dystrophy of upper limb (G90.51-)
Excludes 2
Conditions not included here, but the patient may have both
- 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)
Child Codes (4)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code G56.4?
ICD-10-CM code G56.4 represents "Causalgia of upper limb". It is a non-billable header code — use a more specific child code for billing purposes.
Is G56.4 a billable code?
No, G56.4 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under G56.4.
What chapter is G56.4 in?
G56.4 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What codes cannot be used with G56.4?
G56.4 has Excludes1 notes indicating codes that cannot be used together with it, including: current traumatic nerve, nerve root and plexus disorders - see Injury, nerve by body region; neuralgia NOS (M79.2); neuritis NOS (M79.2); and 8 more.
What are the subcategories under G56.4?
G56.4 has 4 child codes, including: 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).
What are the UMLS CUIs for G56.4?
G56.4 is linked to 2 UMLS Concept Unique Identifiers: C1443291, C2875271. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.