2027 ICD-10-CM Diagnosis Code G83.0Diplegia of upper limbs

ICD-10-CM Codes›G00–G99›G80-G83›G83

ICD-10-CM G83.0
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

G83.0 is a billable ICD-10-CM diagnosis code for diplegia of upper limbs. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 52 through 53. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 17 closely related codes. Coders also document this condition as diplegia. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Paralysis (other than cerebral palsy).

For Medicare Advantage risk adjustment, G83.0 maps to CMS-HCC Category 254 (Monoplegia, Other Paralytic Syndromes) under the V28 model, adding a risk factor of about 0.321 for a community, non-dual, aged beneficiary in payment year 2027.

Code Identity

ICD-10-CM Code
G83.0
Billable Status
Yes — Valid for Submission
Code Describes
Diplegia of upper limbs
Short Description
Diplegia of upper limbs
Same as the full description in the CMS dataset.
Parent Code
G83
Other paralytic syndromes

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG80-G83Cerebral palsy and other paralytic syndromes
CategoryG83Other paralytic syndromes
This CodeG83.0Diplegia of upper limbs

Medicare Risk Adjustment (HCC)Billing

G83.0 maps to a payment category in the CMS-HCC model used to risk-adjust Medicare Advantage payments. Weights are the published community factors for payment year 2027.

CMS-HCC V28 Category (Payment Model)
HCC 254— Monoplegia, Other Paralytic Syndromes
Payment HCC · PY 2027 one of 119 ICD-10-CM codes in this category
Risk Adjustment Factor (RAF) Weight
+0.321
community, non-dual, aged · ranges 0.000–0.365 across segments
Hierarchy
Superseded by HCC 180, HCC 181, HCC 191, HCC 192, and HCC 253
a more severe related category takes the payment when both are reported
Prior Model (CMS-HCC V24)
HCC 104
V24 retired V28 pays 100% of MA risk scores since PY 2026
Other CMS Models
PACE (CMS-HCC V22): HCC 104 · ESRD (V21): HCC 104 · ESRD (V24): HCC 104
ESRD V21 weights: 0.077 dialysis, 0.000–0.307 functioning graft · ESRD V24 weights: 0.047 dialysis, 0.013–0.353 functioning graft
Part D (RxHCC)
Not mapped
G83.0 does not risk-adjust in the RxHCC prescription drug model

Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Diplegia
  • Diplegia of upper limbs
  • Flaccid diplegia of upper limbs
  • Spastic diplegia
  • Spastic diplegia of upper limbs
  • Spastic paralysis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to G83.0: its own notes plus those printed at G83 and Chapter 6. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From G83 Other paralytic syndromes applies to 24 codes
  • paralysis (complete) (incomplete), except as in G80-G82

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Diplegia (upper)
  • Paralysis of both upper limbs

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 6 (G00-G99) Diseases of the nervous system applies to 700 codes
  • 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)

Notes

General instructions on how these codes are used.

From G83 Other paralytic syndromes applies to 24 codes
  • This category is to be used only when the listed conditions are reported without further specification, or are stated to be old or longstanding but of unspecified cause. The category is also for use in multiple coding to identify these conditions resulting from any cause.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

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

CCSR NVS008
Paralysis (other than cerebral palsy)
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Paralysis

Paralysis is the loss of muscle function in part of your body. It happens when something goes wrong with the way messages pass between your brain and muscles. Paralysis can be complete or partial. It can occur on one or both sides of your body. It can also occur in just one area, or it can be widespread.

Read the full article at MedlinePlus

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

Convert G83.0 to ICD-9-CMHistory

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

ICD-9-CM
344.2 Diplegia of upper limbs
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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About G83.0Overview

What is the ICD-10 code for diplegia of upper limbs?

The ICD-10-CM code for diplegia of upper limbs is G83.0 (sometimes written as G830). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is G83.0 (Other paralytic syndromes) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report diplegia of upper limbs on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does G83.0 group to?

When diplegia of upper limbs is the principal diagnosis on an inpatient stay, it groups to MS-DRG 53, 52, with relative weights from 0.9723 to 1.7843 depending on complications. Higher weights mean higher Medicare reimbursement.

Is G83.0 a CC or MCC?

CMS lists G83.0 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 17 closely related codes in its exclusion list.

What is the ICD-9 equivalent of G83.0?

Under the General Equivalence Mappings, diplegia of upper limbs converts to ICD-9-CM 344.2 (diplegia of upper limbs). The mapping is a direct match.

What HCC is G83.0?

G83.0 (diplegia of upper limbs) maps to CMS-HCC Category 254 (Monoplegia, Other Paralytic Syndromes), commonly written as HCC 254, in the CMS-HCC V28 model used for Medicare Advantage risk adjustment in payment year 2027. It mapped to HCC 104 under the retired V24 model. It also maps in the PACE (CMS-HCC V22), ESRD (V21), and ESRD (V24) models. It does not map to any RxHCC in the Part D prescription drug model.

Does G83.0 risk-adjust for Medicare Advantage payment?

Yes. When documented and reported on a Medicare Advantage encounter, G83.0 adds a risk adjustment factor of about 0.321 to the beneficiary's RAF score for a community, non-dual, aged enrollee (published V28 weights range from 0.000 to 0.365 depending on the payment segment). A more severe related category (HCC 180, HCC 181, HCC 191, HCC 192, and HCC 253) supersedes it when both are reported. See the full factor table on the HCC 254 category page.