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ICD-10-CM 2027 diagnosis code

G93.32Myalgic encephalomyelitis/chronic fatigue syndrome

✓ Billable / specific

G93.32 is a valid, billable ICD-10-CM code for myalgic encephalomyelitis/chronic fatigue syndrome. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for SEID, ICD-10 code for ME/CFS, ICD-10 code for Systemic exertion intolerance disease [SEID].

Code last changed in FY2023 (effective October 1, 2022). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About G93.32

G93.32 is the ICD-10-CM diagnosis code for Myalgic encephalomyelitis/chronic fatigue syndrome. It belongs to category G93 (other disorders of brain), block G89-G99 (other disorders of the nervous system) and chapter 6 (diseases of the nervous system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within G93.3 (Postviral and related fatigue syndromes), G93.32 is specifically for Myalgic encephalomyelitis/chronic fatigue syndrome. Related codes cover Postviral fatigue syndrome (G93.31) and other post infection and related fatigue syndromes (G93.39).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 947 (Signs and Symptoms with MCC, relative weight 1.261) and DRG 948 (Signs and Symptoms without MCC, relative weight 0.7835), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It was added in FY2023, effective October 1, 2022.

Coding notes

Applicable toConditions and synonyms classified to this code
  • Chronic fatigue syndrome
  • ME/CFS
  • Myalgic encephalomyelitis

Notes that apply from higher levels

Instructions written at a parent level also apply to G93.32.

› From G93.3 Postviral and related fatigue syndromes
Excludes1
Use additional code
  • code, if applicable, for post COVID-19 condition, unspecified (U09.9)

Broader instructions also apply from Chapter 6: Diseases of the nervous system.

Alphabetic index entries

6 entries

Terms in the official ICD-10-CM index that lead to G93.32.

Codes whose notes reference G93.32

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

MDC 23 · Factors Influencing Health Status and Other Contacts with Health Services

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2023 (effective 10/1/2022): Added
  • No changes since FY2023.

Common questions about G93.32

Is G93.32 billable?

Yes. G93.32 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can G93.32 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict G93.32 as a principal diagnosis.

Is G93.32 a CC or MCC?

No. G93.32 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does G93.32 group to?

G93.32 is used in the MS-DRG v44.0 logic for MS-DRG 947 (Signs and Symptoms with MCC) and MS-DRG 948 (Signs and Symptoms without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.