ICD-10-CM 2027
ICD-10 code for shock
From the official ICD-10-CM alphabetic index entry “Shock”. Page updated September 29, 2026.
About coding shock
The ICD-10-CM code for shock is R57.9 (Shock, unspecified). The official index lists 81 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on R57.9.
Within R57, choose R57.9 (Shock, unspecified) only when documentation doesn't support a more specific option: cardiogenic shock (R57.0), Hypovolemic shock (R57.1) and other shock (R57.8).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 291 (Heart Failure and Shock with MCC, relative weight 1.2685), DRG 292 (Heart Failure and Shock with CC, relative weight 0.8616), DRG 293 (Heart Failure and Shock without CC/MCC, relative weight 0.5462), DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), in MDC 05 (Diseases and Disorders of the Circulatory System) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific shock codes (official index)
- with ectopic or molar pregnancy O08.3 — Shock following ectopic and molar pregnancy
- adrenal (cortical) (Addisonian) E27.2 — Addisonian crisis
- adverse food reaction (anaphylactic)
- allergic
- anaphylactic T78.2 — Anaphylactic shock, unspecified
- chemical
- due to drug or medicinal substance
- correct substance properly administered T88.6 — Anaphylactic reaction due to adverse effect of correct drug or medicament properly administered
- overdose or wrong substance given or taken (by accident)
- due to food (nonpoisonous) T78.00 — Anaphylactic reaction due to unspecified food
- additives T78.06 — Anaphylactic reaction due to food additives
- dairy products T78.079 — Anaphylactic reaction due to milk and dairy products, unspecified
- with
- reactivity to baked milk T78.071 — Anaphylactic reaction due to milk and dairy products with reactivity to baked milk
- tolerance to baked milk T78.070 — Anaphylactic reaction due to milk and dairy products with tolerance to baked milk
- eggs T78.089 — Anaphylactic reaction due to eggs, unspecified
- with
- reactivity to baked egg T78.081 — Anaphylactic reaction due to egg with reactivity to baked egg
- tolerance to baked egg T78.080 — Anaphylactic reaction due to egg with tolerance to baked egg
- fish T78.03 — Anaphylactic reaction due to other fish
- shellfish T78.02 — Anaphylactic reaction due to shellfish (crustaceans)
- fruit T78.04 — Anaphylactic reaction due to fruits and vegetables
- milk T78.079 — Anaphylactic reaction due to milk and dairy products, unspecified
- with
- reactivity to baked milk T78.071 — Anaphylactic reaction due to milk and dairy products with reactivity to baked milk
- tolerance to baked milk T78.070 — Anaphylactic reaction due to milk and dairy products with tolerance to baked milk
- nuts T78.05 — Anaphylactic reaction due to tree nuts and seeds
- multiple types T78.05 — Anaphylactic reaction due to tree nuts and seeds
- peanuts T78.01 — Anaphylactic reaction due to peanuts
- peanuts T78.01 — Anaphylactic reaction due to peanuts
- seeds T78.05 — Anaphylactic reaction due to tree nuts and seeds
- specified type NEC T78.09 — Anaphylactic reaction due to other food products
- vegetable T78.04 — Anaphylactic reaction due to fruits and vegetables
- following sting (s)
- immunization T80.52 — Anaphylactic reaction due to vaccination
- serum T80.59 — Anaphylactic reaction due to other serum
- blood and blood products T80.51 — Anaphylactic reaction due to administration of blood and blood products
- immunization T80.52 — Anaphylactic reaction due to vaccination
- specified NEC T80.59 — Anaphylactic reaction due to other serum
- vaccination T80.52 — Anaphylactic reaction due to vaccination
- anaphylactoid
- anesthetic
- correct substance properly administered T88.2 — Shock due to anesthesia
- overdose or wrong substance given or taken
- specified anesthetic
- cardiogenic R57.0 — Cardiogenic shock
- chemical substance
- complicating ectopic or molar pregnancy O08.3 — Shock following ectopic and molar pregnancy
- culture
- drug
- due to correct substance properly administered T88.6 — Anaphylactic reaction due to adverse effect of correct drug or medicament properly administered
- overdose or wrong substance given or taken (by accident)
- during or after labor and delivery O75.1 — Shock during or following labor and delivery
- electric T75.4 — Electrocution
- (taser) T75.4 — Electrocution
- endotoxic R65.21 — Severe sepsis with septic shock
- postprocedural (resulting from a procedure, not elsewhere classified) T81.12 — Postprocedural septic shock
- following
- ectopic or molar pregnancy O08.3 — Shock following ectopic and molar pregnancy
- injury (immediate) (delayed) T79.4 — Traumatic shock
- labor and delivery O75.1 — Shock during or following labor and delivery
- food (anaphylactic)
- from electroshock gun (taser) T75.4 — Electrocution
- gram-negative R65.21 — Severe sepsis with septic shock
- postprocedural (resulting from a procedure, not elsewhere classified) T81.12 — Postprocedural septic shock
- hematologic R57.8 — Other shock
- hemorrhagic R57.8 — Other shock
- surgery (intraoperative) (postoperative) T81.19 — Other postprocedural shock
- trauma T79.4 — Traumatic shock
- hypovolemic R57.1 — Hypovolemic shock
- surgical T81.19 — Other postprocedural shock
- traumatic T79.4 — Traumatic shock
- insulin E15 — Nondiabetic hypoglycemic coma
- therapeutic misadventure
- kidney N17.0 — Acute kidney failure with tubular necrosis
- traumatic (following crushing) T79.5 — Traumatic anuria
- liver K72.00 — Acute and subacute hepatic failure without coma
- lightning T75.01 — Shock due to being struck by lightning
- lung J80 — Acute respiratory distress syndrome
- obstetric O75.1 — Shock during or following labor and delivery
- with ectopic or molar pregnancy O08.3 — Shock following ectopic and molar pregnancy
- following ectopic or molar pregnancy O08.3 — Shock following ectopic and molar pregnancy
- pleural (surgical) T81.19 — Other postprocedural shock
- due to trauma T79.4 — Traumatic shock
- postprocedural (postoperative) T81.10 — Postprocedural shock unspecified
- with ectopic or molar pregnancy O08.3 — Shock following ectopic and molar pregnancy
- cardiogenic T81.11 — Postprocedural cardiogenic shock
- endotoxic T81.12 — Postprocedural septic shock
- following ectopic or molar pregnancy O08.3 — Shock following ectopic and molar pregnancy
- gram-negative T81.12 — Postprocedural septic shock
- hypovolemic T81.19 — Other postprocedural shock
- septic T81.12 — Postprocedural septic shock
- specified type NEC T81.19 — Other postprocedural shock
- psychic F43.0 — Acute stress reaction
- septic (due to severe sepsis) R65.21 — Severe sepsis with septic shock
- specified NEC R57.8 — Other shock
- surgical T81.10 — Postprocedural shock unspecified
- taser gun (taser) T75.4 — Electrocution
- therapeutic misadventure NEC T81.10 — Postprocedural shock unspecified
- thyroxin
- overdose or wrong substance given or taken
- toxic, syndrome A48.3 — Toxic shock syndrome
- transfusion
- traumatic (immediate) (delayed) T79.4 — Traumatic shock
Common questions about shock ICD-10 codes
What is the ICD-10 code for shock?
- R57.9 — Shock, unspecified. More specific codes apply when the documentation supports them: O08.3, E27.2, T78.2, T88.6 and others below.
What is the ICD-10 code for adrenal shock?
- E27.2 — Addisonian crisis.
What is the ICD-10 code for anaphylactic shock?
- T78.2 — Anaphylactic shock, unspecified (header code; choose a more specific subcode).
What is the ICD-10 code for cardiogenic shock?
- R57.0 — Cardiogenic shock.
What is the ICD-10 code for electric shock?
- T75.4 — Electrocution (header code; choose a more specific subcode).
What is the ICD-10 code for endotoxic shock?
- R65.21 — Severe sepsis with septic shock.
What is the ICD-10 code for gram-negative shock?
- R65.21 — Severe sepsis with septic shock.
Is R57.9 billable?
- Yes. R57.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R57.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R57.9 as a principal diagnosis.
Is R57.9 a CC or MCC?
- R57.9 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.