G93.4
Non-Billable

Other and unspecified encephalopathy

Non-Billable / Non-Specific Code

What is Other and unspecified encephalopathy?

ICD-10-CM G93.4 is the diagnosis code for Other and unspecified encephalopathy. This code falls under the section "Other disorders of the nervous system" within Chapter 6 — Diseases of the nervous system (G00-G99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

â„šī¸ Excludes2

Coding Guidelines for G93.4

â„šī¸ Type 2 Excludes (Code separately if applicable)

The following conditions are not included in G93.4. If the patient has both, code each condition separately:

  • alcoholic encephalopathy (G31.2)
  • encephalopathy in diseases classified elsewhere (G94)
  • hypertensive encephalopathy (I67.4)
  • toxic (metabolic) encephalopathy (G92.8)

ICD-10-CM Code Hierarchy

Understanding where G93.4 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 7 entries
G93.40Encephalopathy, unspecifiedBillableG93.41Metabolic encephalopathyBillableG93.42Megalencephalic leukoencephalopathy with subcortical cystsBillableG93.43Leukoencephalopathy with calcifications and cystsBillableG93.44Adult-onset leukodystrophy with axonal spheroidsBillableG93.45Developmental and epileptic encephalopathyBillableG93.49Other encephalopathyBillable
Related Codes

Frequently Asked Questions

Is G93.4 a billable ICD-10-CM code?

No, G93.4 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does G93.4 mean?

G93.4 is the ICD-10-CM diagnosis code for "Other and unspecified encephalopathy". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of G93.4?

The parent code of G93.4 is G93 ("Other disorders of brain"). G93.4 provides a more specific classification within this category.

What section is G93.4 in?

G93.4 is located in Section G89-G99 — "Other disorders of the nervous system" within Chapter 6 of the ICD-10-CM Tabular List.

What are the sub-codes of G93.4?

G93.4 has 7 sub-code(s) that provide more specific detail: G93.40, G93.41, G93.42, G93.43, G93.44 and more.

When should I use G93.4?

Use G93.4 when the patients documented diagnosis matches "Other and unspecified encephalopathy" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Other and unspecified encephalopathy?

The ICD-10-CM code for Other and unspecified encephalopathy is G93.4.

Can G93.4 be used for primary diagnosis?

No, G93.4 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is G93.4 in?

G93.4 is in Chapter 6 of the ICD-10-CM Tabular List.

Is G93.4 valid for 2026?

Yes, G93.4 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousG93.39Other post infection and related fatigue syndromesNext →G93.40Encephalopathy, unspecified
Code Details
G93.4
Other and unspecified encephalopathy
Non-Billable / Non-Specific Code
6 — Diseases of the nervous system (G00-G99)
G89-G99 — Other disorders of the nervous system
2026 ICD-10-CM