2026 ICD-10-CM Diagnosis Code G80.1Spastic diplegic cerebral palsy

ICD-10-CM Codes›G00–G99›G80-G83›G80

ICD-10-CM G80.1
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

G80.1 is a billable ICD-10-CM diagnosis code for spastic diplegic cerebral palsy. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Cerebral palsy.

Code Identity

ICD-10-CM Code
G80.1
Billable Status
Yes — Valid for Submission
Code Describes
Spastic diplegic cerebral palsy
Short Description
Spastic diplegic cerebral palsy
Same as the full description in the CMS dataset.
Parent Code
G80
Cerebral palsy

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG80-G83Cerebral palsy and other paralytic syndromes
CategoryG80Cerebral palsy
This CodeG80.1Spastic diplegic cerebral palsy

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral cerebral palsy
  • Childhood-onset spasticity with hyperglycinemia
  • Diplegia
  • Hyperglycinemia
  • Intellectual disability, spasticity, ectrodactyly syndrome
  • Non-ketotic hyperglycinemia
  • Paralysis from birth trauma
  • Paralytic syndrome on both sides of the body
  • Postnatal microcephaly, infantile hypotonia, spastic diplegia, dysarthria, intellectual disability syndrome
  • Severe intellectual disability, progressive spastic diplegia syndrome
  • Spastic ataxia
  • Spastic cerebral palsy
  • Spastic diplegia
  • Spastic paralysis
  • Spastic paralysis due to birth injury
  • Spastic paralysis due to intracranial birth injury
  • Spastic paraplegia, intellectual disability, palmoplantar hyperkeratosis syndrome
  • Talipes cavus

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Spastic cerebral palsy NOS

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Cerebrospasticity(congenital)
    • Diplegia(upper limbs)
      • spastic
    • Monoplegia
      • congenital (cerebral)
        • spastic
    • Palsy
      • cerebral (congenital)
        • diplegic
          • spastic
    • Palsy
      • cerebral (congenital)
        • monoplegic
          • spastic
    • Palsy
      • cerebral (congenital)
        • paraplegic
          • spastic
    • Palsy
      • cerebral (congenital)
        • spastic
    • Palsy
      • cerebral (congenital)
        • spastic
          • diplegic
    • Palsy
      • cerebral (congenital)
        • spastic
          • monoplegic
    • Palsy
      • cerebral (congenital)
        • spastic
          • specified NEC
    • Palsy
      • spastic (cerebral) (spinal)
    • Paralysis, paralytic(complete) (incomplete)
      • cerebrocerebellar, diplegic
    • Paraplegia(lower)
      • congenital (cerebral)
        • spastic
    • Spastic, spasticity
      • child (cerebral) (congenital) (paralysis)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NVS007
Cerebral palsy
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Talipes Cavus

    a foot deformity in which the arch of the foot is high and often the heel adducted.

  • Spastic Cerebral Palsy

    a type of cerebral palsy characterized by increased muscle tone.

  • Brachial Amyotrophic Diplegia|BAD|FAS|Flail Arm Syndrome|MIBS|Man-in-barrel Syndrome

    a neurodegenerative condition characterized by asymmetric weakness in the upper extremities resulting from segmental lower motor neuron dysfunction.

  • Diplegia

    paralysis affecting corresponding parts on both sides of the body.

  • Diplegia of Upper Limbs|Diplegia of upper limbs

    evidence of diplegia of the upper limbs.

  • Neurodevelopmental Disorder with Spastic Diplegia and Visual Defects|MRD19|Mental Retardation, Autosomal Dominant 19|NEDSDV

    an autosomal dominant condition caused by mutation(s) in the ctnnb1 gene, encoding catenin beta-1. it is characterized by severe intellectual disability, progressive spastic diplegia, visual impairment, and dysmorphic craniofacial features.

  • Quadriplegia|Bilateral Diplegia|Bilateral Diplegia|Quadriplegia, unspecified|Tetraplegia

    paralysis of all four limbs.

  • Spastic Diplegia|Little's Disease|Spastic diplegic cerebral palsy

    a type of cerebral palsy characterized by spasticity and hypertonia of the lower extremities bilaterally, particularly the legs, hips, and pelvis; this is the most common (70%) form of cerebral palsy.

Patient EducationClinical

Cerebral Palsy

Cerebral palsy (CP) is a group of neurologic disorders that cause problems with movement, balance, and posture. The first part of the name, cerebral, means having to do with the brain. The second part, palsy, means weakness or problems with using the muscles.

The full article covers:

  • What is cerebral palsy (CP)?
  • What are the types of cerebral palsy (CP)?
  • What causes cerebral palsy (CP)?
  • Who is more likely to develop cerebral palsy (CP)?
  • What are the signs of cerebral palsy (CP)?
  • How is cerebral palsy (CP) diagnosed?
  • What are the treatments for cerebral palsy (CP)?
  • Can cerebral palsy (CP) be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert G80.1 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
343.0 Congenital diplegia
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About G80.1Overview

Is G80.1 (Cerebral palsy) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report spastic diplegic cerebral palsy on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of G80.1?

Under the General Equivalence Mappings, spastic diplegic cerebral palsy converts to ICD-9-CM 343.0 (congenital diplegia). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.