2027 ICD-10-CM Diagnosis Code G71.09Other specified muscular dystrophies

ICD-10-CM Codes›G00–G99›G70-G73›G71

ICD-10-CM G71.09
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

G71.09 is a billable ICD-10-CM diagnosis code for other specified muscular dystrophies. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 91 through 93. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Myopathies.

For Medicare Advantage risk adjustment, G71.09 maps to CMS-HCC Category 197 (Muscular Dystrophy) under the V28 model, adding a risk factor of about 0.426 for a community, non-dual, aged beneficiary in payment year 2027.

Code Identity

ICD-10-CM Code
G71.09
Billable Status
Yes — Valid for Submission
Code Describes
Other specified muscular dystrophies
Short Description
Other specified muscular dystrophies
Same as the full description in the CMS dataset.
Parent Code
G71.0
Muscular dystrophy

Code Classification

ChapterG00–G99Diseases of the nervous system
SectionG70-G73Diseases of myoneural junction and muscle
CategoryG71Primary disorders of muscles
This CodeG71.09Other specified muscular dystrophies

Medicare Risk Adjustment (HCC)Billing

G71.09 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 197— Muscular Dystrophy
Payment HCC · PY 2027 one of 21 ICD-10-CM codes in this category
Risk Adjustment Factor (RAF) Weight
+0.426
community, non-dual, aged · ranges 0.145–0.681 across segments
Hierarchy
Top of its hierarchy
HCC 197 is not superseded by any other condition category
Prior Model (CMS-HCC V24)
HCC 76
V24 retired V28 pays 100% of MA risk scores since PY 2026
Other CMS Models
PACE (CMS-HCC V22): HCC 76 · ESRD (V21): HCC 76 · ESRD (V24): HCC 76
ESRD V21 weights: 0.062 dialysis, 0.296–0.544 functioning graft · ESRD V24 weights: 0.136 dialysis, 0.322–0.842 functioning graft
Part D (RxHCC)
Not mapped
G71.09 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.

  • Adenylosuccinate synthetase-like 1-related distal myopathy
  • Adult onset autosomal recessive muscular dystrophy with normal dystrophin
  • Adult-onset distal myopathy due to valosin containing protein mutation
  • Atrophy of muscle of lower leg
  • Atrophy of muscle of shoulder
  • Atrophy of peroneal muscle
  • Autosomal dominant Emery-Dreifuss muscular dystrophy
  • Autosomal dominant muscular dystrophy not predominantly limb girdle
  • Autosomal dominant muscular dystrophy with gene located at 5q31
  • Autosomal dominant muscular dystrophy with limb girdle distribution
  • Autosomal recessive Emery-Dreifuss muscular dystrophy
  • Autosomal recessive muscular dystrophy not predominantly limb girdle
  • Autosomal recessive muscular dystrophy with abnormal dystrophin-associated glycoprotein
  • Benign congenital muscular dystrophy with finger flexion contractures
  • Benign scapuloperoneal muscular dystrophy
  • Caveolin 3 related distal myopathy
  • Combined malformation of central nervous system and skeletal muscle
  • Congenital hereditary muscular dystrophy
  • Congenital muscular dystrophy due to LMNA mutation
  • Congenital muscular dystrophy Paradas type
  • Congenital muscular dystrophy type 1A
  • Congenital muscular dystrophy type 1B
  • Congenital muscular dystrophy type 1C due to fukutin related protein gene mutation
  • Congenital muscular dystrophy type 1D large gene mutation
  • Congenital muscular dystrophy with arthrogryposis multiplex congenita
  • Congenital muscular dystrophy with cerebellar involvement
  • Congenital muscular dystrophy with hyperlaxity
  • Congenital muscular dystrophy with infantile cataract and hypogonadism syndrome
  • Congenital muscular dystrophy with integrin alpha-7 deficiency
  • Congenital muscular dystrophy with intellectual disability
  • Congenital muscular dystrophy with intellectual disability and severe epilepsy
  • Congenital muscular dystrophy without intellectual disability
  • Congenital muscular dystrophy, respiratory failure, skin abnormalities, joint hyperlaxity syndrome
  • Distal anoctaminopathy
  • Distal muscular dystrophy with juvenile onset
  • Distal muscular dystrophy, Miyoshi type
  • Distal myopathy 2
  • Distal myopathy Welander type
  • Distal myopathy with anterior tibial onset
  • Distal myopathy with posterior leg and anterior hand involvement
  • Distal nebulin myopathy
  • Early onset myopathy with fatal cardiomyopathy
  • Eichsfeld type congenital muscular dystrophy
  • Emery-Dreifuss muscular dystrophy
  • Finnish upper limb onset distal myopathy
  • Fukuyama congenital muscular dystrophy
  • Hereditary progressive muscular dystrophy
  • Hoffman syndrome
  • Hutterite type of muscular dystrophy
  • Infantile and/or juvenile cataract
  • Infantile cataract
  • Intermediate collagen VI-related muscular dystrophy
  • Intermediate X-linked muscular dystrophy
  • KLHL9-related early-onset distal myopathy
  • Laing early-onset distal myopathy
  • Late onset proximal muscular dystrophy with dysarthria
  • Late-onset distal myopathy Markesbery Griggs type
  • Manifesting female carrier of X-linked muscular dystrophy
  • Megaconial congenital muscular dystrophy
  • Merosin deficient congenital muscular dystrophy
  • Muscle eye brain disease with bilateral multicystic leukodystrophy
  • Muscle-eye-brain disease, congenital muscular dystrophy
  • Muscular dystrophy Selcen type
  • Neurogenic scapuloperoneal syndrome Kaeser type
  • Nonsenile cataract
  • Oculogastrointestinal muscular dystrophy
  • Oculopharyngeal muscular dystrophy
  • Oculopharyngodistal myopathy
  • Pharyngeal paresis
  • POGLUT1-related limb girdle muscular dystrophy R21
  • Progressive ptosis of upper eyelid
  • Progressive scapulohumeroperoneal distal myopathy
  • Progressive weakness of muscle
  • Pseudohypertrophy of calf muscle
  • Pseudohypertrophy of muscle
  • Reunion-Indiana Amish type muscular dystrophy
  • Scapuloperoneal muscular dystrophy
  • Severe childhood autosomal recessive muscular dystrophy
  • Severe scapuloperoneal muscular dystrophy with cardiomyopathy
  • Structural abnormality of muscle of pharynx
  • Type 2 lissencephaly
  • Walker-Warburg congenital muscular dystrophy
  • Weakness of vocal cord
  • Western type of congenital muscular dystrophy
  • X-linked Emery-Dreifuss muscular dystrophy
  • X-linked muscular dystrophy with abnormal dystrophin
  • X-linked muscular dystrophy with limb girdle distribution
  • X-linked scapuloperoneal muscular dystrophy

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to G71.09: its own notes plus those printed at G71 and Chapter 6. A note printed at a category, block or chapter applies to every code under it.

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.

  • Benign scapuloperoneal muscular dystrophy with early contractures [Emery-Dreifuss]
  • Congenital muscular dystrophy NOS
  • Congenital muscular dystrophy with specific morphological abnormalities of the muscle fiber
  • Distal muscular dystrophy
  • Ocular muscular dystrophy
  • Oculopharyngeal muscular dystrophy
  • Scapuloperoneal muscular dystrophy

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 G71 Primary disorders of muscles applies to 28 codes
  • arthrogryposis multiplex congenita (Q74.3)
  • metabolic disorders (E70-E88)
  • myositis (M60.-)
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)

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

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name G71.09, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming G71.09: its condition is not part of those codes, and both may be reported when the patient has both.

  • Block M60-M63 Disorders of muscles
    muscular dystrophies and myopathies (G71-G72) names G71-G72, which includes this code

Code First 2

These codes say to code first a condition named in the note, and G71.09 is one of the conditions named.

  • M62.84 Sarcopenia
    primary disorders of muscles (G71.-) names G71.-, which includes this code
  • Z99.3 Dependence on wheelchair
    muscular dystrophy (G71.0-) names G71.0-, which includes this code

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 NVS018
Myopathies
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Muscular Dystrophies

    a heterogeneous group of inherited myopathies, characterized by wasting and weakness of the skeletal muscle. they are categorized by the sites of muscle weakness; age of onset; and inheritance patterns.

Patient EducationClinical

Muscular Dystrophy

Muscular dystrophy (MD) is a group of more than 30 genetic diseases. They cause weakness of the muscles. Over time, the weakness gets worse and can cause trouble walking and doing daily activities. Some types of MD can also affect other organs.

The full article covers:

  • What is muscular dystrophy (MD)?
  • What are the types of muscular dystrophy (MD)?
  • What causes muscular dystrophy (MD)?
  • How is muscular dystrophy (MD) diagnosed?
  • What are the treatments for muscular dystrophy (MD)?

Read the full article at MedlinePlus

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

Code History & ChangesHistory

Replacement G71.09 replaces the following previously assigned code(s):

  • G71.0 - Muscular dystrophy
FY 2019AddedAdded to the ICD-10-CM code setEffective October 1, 2018.
FY 2020–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About G71.09Overview

What is the ICD-10 code for other specified muscular dystrophies?

The ICD-10-CM code for other specified muscular dystrophies is G71.09 (sometimes written as G7109). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is G71.09 (Muscular dystrophy) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specified muscular dystrophies on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does G71.09 group to?

When other specified muscular dystrophies is the principal diagnosis on an inpatient stay, it groups to MS-DRG 91, 92, 93, with relative weights from 0.7783 to 1.7050 depending on complications. Higher weights mean higher Medicare reimbursement.

What HCC is G71.09?

G71.09 (other specified muscular dystrophies) maps to CMS-HCC Category 197 (Muscular Dystrophy), commonly written as HCC 197, in the CMS-HCC V28 model used for Medicare Advantage risk adjustment in payment year 2027. It mapped to HCC 76 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 G71.09 risk-adjust for Medicare Advantage payment?

Yes. When documented and reported on a Medicare Advantage encounter, G71.09 adds a risk adjustment factor of about 0.426 to the beneficiary's RAF score for a community, non-dual, aged enrollee (published V28 weights range from 0.145 to 0.681 depending on the payment segment). HCC 197 sits at the top of its hierarchy, so no other condition category supersedes it. See the full factor table on the HCC 197 category page.