AutoICD API

R40.20

Billable

Unspecified coma

Unspecified coma

Status

Billable / Specific

Block

R40-R46

Parent Code

R40.2

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Coma NOS
  • Unconsciousness NOS

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • neonatal coma (P91.5)
  • somnolence, stupor and coma in diabetes (E08-E13)
  • somnolence, stupor and coma in hepatic failure (K72.-)
  • somnolence, stupor and coma in hypoglycemia (nondiabetic) (E15)

Excludes 2

Conditions not included here, but the patient may have both

  • abnormal findings on antenatal screening of mother (O28.-)
  • certain conditions originating in the perinatal period (P04-P96)
  • signs and symptoms classified in the body system chapters
  • signs and symptoms of breast (N63, N64.5)
  • symptoms and signs constituting part of a pattern of mental disorder (F01-F99)

Code First

The underlying condition must be sequenced before this code

  • any associated:
  • fracture of skull (S02.-)
  • intracranial injury (S06.-)

Also Known As / Clinical Terms

SNOMED CT

UMLS

Frequently Asked Questions

What is the ICD-10 code for unspecified coma?

The ICD-10-CM code for unspecified coma is R40.20. The full clinical description is "Unspecified coma". R40.20 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code R40.20 mean?

ICD-10-CM code R40.20 represents "Unspecified coma". It is classified under Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings and is a billable/specific code that can be used on a claim.

Is R40.20 a billable code?

Yes, R40.20 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is R40.20 in?

R40.20 is in Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (codes R00-R99).

What codes cannot be used with R40.20?

R40.20 has Excludes1 notes indicating codes that cannot be used together with it, including: neonatal coma (P91.5); somnolence, stupor and coma in diabetes (E08-E13); somnolence, stupor and coma in hepatic failure (K72.-); and 1 more.

What SNOMED CT codes does R40.20 map to?

R40.20 maps to 22 SNOMED CT concepts: 230800004, 403749002, 371632003, 420996007, 1172389004, and 17 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for R40.20?

R40.20 is linked to 2 UMLS Concept Unique Identifiers: C0009421, C0041657. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.