2026 ICD-10-CM Diagnosis Code G32.0Subacute combined degeneration of spinal cord in diseases classified elsewhere
ICD-10-CM Codes›G00–G99›G30-G32›G32
- Billable — Valid for Submission
- Chronic Condition
G32.0 is a billable ICD-10-CM diagnosis code for subacute combined degeneration of spinal cord in diseases classified elsewhere. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is a manifestation code that cannot be reported as the principal diagnosis. Coders also document this condition as myelopathy due to nutritional deficiency. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other nervous system disorders (often hereditary or degenerative).
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for G32.0.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Myelopathy due to nutritional deficiency
- Myelopathy due to vitamin B12 deficiency
- Subacute combined degeneration of spinal cord
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Dana-Putnam syndrome
- Sclerosis of spinal cord (combined) (dorsolateral) (posterolateral)
Code First
- underlying disease, such as:
- other dietary vitamin B12 deficiency anemia D51.3
- vitamin B12 deficiency anemia due to intrinsic factor deficiency D51.0
- vitamin B12 deficiency anemia, unspecified D51.8
- vitamin B12 deficiency E53.8
Type 1 Excludes
- syphilitic combined degeneration of spinal cord A52.11
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Spinal Cord Diseases
Your spinal cord is a bundle of nerves that runs down the middle of your back. It carries signals back and forth between your body and your brain. It is protected by your vertebrae, which are the bone disks that make up your spine.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert G32.0 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About G32.0Overview
Is G32.0 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report subacute combined degeneration of spinal cord in diseases classified elsewhere on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Can G32.0 be a principal diagnosis?
No. This is a manifestation code: subacute combined degeneration of spinal cord in diseases classified elsewhere describes the manifestation of an underlying disease rather than the disease itself, so the underlying condition is sequenced first.
What is the ICD-9 equivalent of G32.0?
Under the General Equivalence Mappings, subacute combined degeneration of spinal cord in diseases classified elsewhere converts to ICD-9-CM 336.2 (comb deg cord in oth dis). 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.
