Version 2024

2024 ICD-10-CM Diagnosis Code S01.90XS

Unspecified open wound of unspecified part of head, sequela

ICD-10-CM Code:: S01.90XS
ICD-10 Code for:: Unspecified open wound of unspecified part of head, sequela
Is Billable?: Yes - Valid for Submission
Chronic Condition Indicator: ^[1]: Not chronic
Code Navigator:

Code Information
Approximate Synonyms
Clinical Classification
Coding Guidelines
Tabular List of Diseases and Injuries
Diagnostic Related Groups Mapping
Present on Admission (POA)
Convert to ICD-9 Code
Patient Education
Other Codes Used Similar Conditions
Code History

Code Classification

Injury, poisoning and certain other consequences of external causes
(S00–T88)
- Injuries to the head
  (S00-S09)
  - Open wound of head
    (S01)

S01.90XS is a billable diagnosis code used to specify a medical diagnosis of unspecified open wound of unspecified part of head, sequela. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

S01.90XS is a sequela code, includes a 7th character and should be used for complications that arise as a direct result of a condition like unspecified open wound of unspecified part of head. According to ICD-10-CM Guidelines a "sequela" code should be used for chronic or residual conditions that are complications of an initial acute disease, illness or injury. The most common sequela is pain. Usually, two diagnosis codes are needed when reporting sequela. The first code describes the nature of the sequela while the second code describes the sequela or late effect.

Unspecified diagnosis codes like S01.90XS are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Brain injury with open intracranial wound AND concussion
Brain injury with open intracranial wound AND concussion
Brain injury with open intracranial wound AND concussion
Brain injury with open intracranial wound AND concussion
Brain injury with open intracranial wound AND concussion
Brain injury with open intracranial wound AND concussion
Brain injury with open intracranial wound AND concussion
Brain injury with open intracranial wound AND concussion
Brain injury with open intracranial wound AND concussion
Brain injury with open intracranial wound AND concussion
Brain injury with open intracranial wound AND loss of consciousness
Brain injury with open intracranial wound AND loss of consciousness
Brain injury with open intracranial wound AND loss of consciousness
Brain injury with open intracranial wound AND loss of consciousness
Brain injury with open intracranial wound AND loss of consciousness
Brain injury with open intracranial wound AND loss of consciousness
Brain injury with open intracranial wound AND loss of consciousness
Brain injury with open intracranial wound AND loss of consciousness
Brain stem contusion
Brain stem contusion
Brain stem contusion
Brain stem contusion with open intracranial wound
Brain stem contusion with open intracranial wound
Brain stem contusion with open intracranial wound
Brain stem contusion with open intracranial wound AND concussion
Brain stem contusion with open intracranial wound AND loss of consciousness
Brain stem laceration
Brain stem laceration
Brain stem laceration
Brain stem laceration
Brain stem laceration with concussion
Brain stem laceration with loss of consciousness
Brain stem laceration with open intracranial wound
Brain stem laceration with open intracranial wound
Brain stem laceration with open intracranial wound AND concussion
Brain stem laceration with open intracranial wound AND loss of consciousness
Brain stem laceration with open intracranial wound AND no loss of consciousness
Cerebellar contusion with open intracranial wound
Cerebellar contusion with open intracranial wound
Cerebellar contusion with open intracranial wound
Cerebellar contusion with open intracranial wound
Cerebellar contusion with open intracranial wound AND concussion
Cerebellar contusion with open intracranial wound AND loss of consciousness
Cerebellar laceration with concussion
Cerebellar laceration with open intracranial wound
Cerebellar laceration with open intracranial wound
Cerebellar laceration with open intracranial wound
Cerebellar laceration with open intracranial wound
Cerebellar laceration with open intracranial wound
Cerebellar laceration with open intracranial wound
Cerebellar laceration with open intracranial wound
Cerebellar laceration with open intracranial wound AND concussion
Cerebellar laceration with open intracranial wound AND loss of consciousness
Cerebellar laceration with open intracranial wound AND no loss of consciousness
Cerebellar laceration with open intracranial wound AND no loss of consciousness
Cerebral cortex laceration with concussion
Cerebral laceration and contusion
Complete open fracture of maxilla
Complex wound of head
Complex wound of head
Complex wound of head with avulsive loss of part of skull and cranial contents
Complex wound of head with retained external material
Contusion of brain with open intracranial wound
Contusion of cerebral cortex
Contusion of cerebral cortex
Contusion of cerebral cortex
Contusion of cerebral cortex
Contusion of cerebrum with open intracranial wound
Contusion of cerebrum with open intracranial wound
Contusion of cerebrum with open intracranial wound
Contusion of cerebrum with open intracranial wound
Contusion of hindbrain
Contusion of hindbrain with open intracranial wound
Cortex contusion with open intracranial wound
Cortex contusion with open intracranial wound
Cortex contusion with open intracranial wound
Cortex contusion with open intracranial wound
Cortex contusion with open intracranial wound AND concussion
Cortex contusion with open intracranial wound AND loss of consciousness
Cortex contusion with open intracranial wound, with no loss of consciousness
Cortex laceration
Cortex laceration
Cortex laceration
Cortex laceration
Cortex laceration with open intracranial wound
Cortex laceration with open intracranial wound
Cortex laceration with open intracranial wound
Cortex laceration with open intracranial wound
Cortex laceration with open intracranial wound AND concussion
Cortex laceration with open intracranial wound AND loss of consciousness
Cortex laceration with open intracranial wound, with no loss of consciousness
Extradural hemorrhage following injury with open intracranial wound
Extradural hemorrhage following injury with open intracranial wound
Extradural hemorrhage following injury with open intracranial wound
Extradural hemorrhage following injury with open intracranial wound AND concussion
Extradural hemorrhage following injury with open intracranial wound AND loss of consciousness
Extradural intracranial hematoma
Foreign body left in wound
Fracture of alveolus, open
Fracture of malar or maxillary bones, open
Glass in head and neck
Gunshot wound of head
Hind brain laceration with open intracranial wound
Hind brain laceration with open intracranial wound
Hind brain laceration with open intracranial wound
Hind brain laceration with open intracranial wound and loss of consciousness
Hind brain laceration with open intracranial wound, with no loss of consciousness
Injury of Eustachian tube
Intracranial hematoma following injury
Intracranial hematoma following injury
Intracranial hemorrhage following injury with loss of consciousness
Intracranial hemorrhage following injury with loss of consciousness
Intracranial hemorrhage following injury with loss of consciousness
Intracranial hemorrhage following injury with open intracranial wound
Intracranial hemorrhage following injury with open intracranial wound AND concussion
Intracranial hemorrhage following injury with open intracranial wound AND concussion
Intracranial hemorrhage following injury with open intracranial wound AND concussion
Intracranial hemorrhage following injury with open intracranial wound AND loss of consciousness
Intracranial hemorrhage following injury with open intracranial wound AND loss of consciousness
Intracranial hemorrhage following injury with open intracranial wound AND loss of consciousness
Intracranial injury with prolonged coma
Intracranial injury with prolonged coma with open wound
Laceration of brain with open intracranial wound
Late effect of open wound of head, neck and trunk
Le Fort's fracture
Le Fort's fracture
Le Fort's fracture
Le Fort's fracture, type I
Le Fort's fracture, type II
Le Fort's fracture, type III
Metal foreign body in head and neck
Multiple fractures of skull
Multiple open fractures of skull
Multiple open wounds of head
Open fracture of alveolar ridge of maxilla
Open fracture of base of skull
Open fracture of base of skull
Open fracture of base of skull
Open fracture of base of skull
Open fracture of base of skull
Open fracture of base of skull with cerebral laceration AND contusion
Open fracture of base of skull with intracranial hemorrhage
Open fracture of base of skull with intracranial injury
Open fracture of base of skull with intracranial injury
Open fracture of base of skull with intracranial injury, with no loss of consciousness
Open fracture of maxilla
Open fracture of maxilla
Open fracture of maxilla
Open fracture of maxilla
Open fracture of orbit
Open fracture of skull
Open fracture of skull with cerebral contusion
Open fracture of skull with cerebral contusion
Open fracture of skull with cerebral contusion
Open fracture of skull with cerebral laceration
Open fracture of skull with cerebral laceration
Open fracture of tooth
Open fracture of vault of skull
Open fracture of vault of skull
Open fracture of vault of skull
Open fracture of vault of skull
Open fracture of vault of skull
Open fracture of vault of skull
Open fracture of vault of skull with cerebral contusion
Open fracture of vault of skull with concussion
Open fracture of vault of skull with intracranial injury, with no loss of consciousness
Open fracture of vault of skull with loss of consciousness
Open fracture vault of skull with intracranial injury
Open fracture vault of skull with intracranial injury
Open fracture vault of skull with intracranial injury
Open fracture vault of skull with intracranial injury
Open fracture vault of skull with intracranial injury
Open horizontal fracture of maxilla
Open injury with foreign body in wound
Open pyramidal fracture of maxilla
Open skull fracture with intracranial hemorrhage
Open skull fracture with intracranial hemorrhage
Open skull fracture with intracranial injury
Open wound of eustachian tube
Open wound of head
Open wound of head AND/OR neck
Open wound of head with complication
Open wound of head without complication
Open wound of head, neck and trunk
Open wounds involving head with neck
Sequelae of open wound of head
Subarachnoid hemorrhage due to traumatic injury
Subarachnoid hemorrhage due to traumatic injury
Subarachnoid hemorrhage due to traumatic injury
Subarachnoid hemorrhage following injury with open intracranial wound
Subarachnoid hemorrhage following injury with open intracranial wound
Subarachnoid hemorrhage following injury with open intracranial wound
Subarachnoid hemorrhage following injury with open intracranial wound AND concussion
Subarachnoid hemorrhage following injury with open intracranial wound AND loss of consciousness
Subdural hemorrhage following open wound of head
Subdural hemorrhage with open intracranial wound
Traumatic brain injury with no loss of consciousness
Traumatic brain injury with no loss of consciousness
Traumatic brain injury with no loss of consciousness
Traumatic brain injury with no loss of consciousness
Traumatic brain injury with no loss of consciousness
Traumatic extradural hematoma with open intracranial wound
Traumatic hematoma of subdural space of neuraxis
Traumatic intracranial extradural hematoma
Traumatic subdural hematoma
Traumatic subdural hematoma with open intracranial wound
Traumatic subdural hemorrhage

Clinical Classification

Clinical Category	CCSR Category Code	Inpatient Default CCSR	Outpatient Default CCSR
Any dental condition including traumatic injury	DEN001	N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis.	N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis.
Injury, sequela	INJ073	Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.	Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.

Coding Guidelines

The appropriate 7th character is to be added to each code from block Open wound of head (S01). Use the following options for the aplicable episode of care:

A - initial encounter
D - subsequent encounter
S - sequela

S01.90XS is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together diagnosis codes for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on their principal diagnosis in areas referred to as Major Diagnostic Categories (MDC). Once a patient is assigned a particular diagnostic category, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care for that patient. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

MS-DRG	MS-DRG Title	MCD	Relative Weight
604	TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITH MCC	09	1.5062
605	TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITHOUT MCC	09	0.9088

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Present on Admission (POA)

S01.90XS is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here.

CMS POA Indicator Options and Definitions

POA Indicator	Reason for Code	CMS will pay the CC/MCC DRG?
Y	Diagnosis was present at time of inpatient admission.	YES
N	Diagnosis was not present at time of inpatient admission.	NO
U	Documentation insufficient to determine if the condition was present at the time of inpatient admission.	NO
W	Clinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.	YES
1	Unreported/Not used - Exempt from POA reporting.	NO

Convert S01.90XS to ICD-9-CM

ICD-9-CM Code: 906.0 - Lt eff opn wnd head/trnk
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education

Wounds and Injuries

An injury is damage to your body. It is a general term that refers to harm caused by accidents, falls, hits, weapons, and more. In the U.S., millions of people injure themselves every year. These injuries range from minor to life-threatening. Injuries can happen at work or play, indoors or outdoors, driving a car, or walking across the street.

Wounds are injuries that break the skin or other body tissues. They include cuts, scrapes, scratches, and punctured skin. They often happen because of an accident, but surgery, sutures, and stitches also cause wounds. Minor wounds usually aren't serious, but it is important to clean them. Serious and infected wounds may require first aid followed by a visit to your doctor. You should also seek attention if the wound is deep, you cannot close it yourself, you cannot stop the bleeding or get the dirt out, or it does not heal.

Other common types of injuries include:

Animal bites
Bruises
Burns
Dislocations
Electrical injuries
Fractures (broken bones)
Sprains and strains

[Learn More in MedlinePlus]

Other ICD-10-CM Codes Commonly Used for Similar Conditions

Filter related codes list:

S01 Open wound of head.
S01.0 Open wound of scalp.
S01.00 Unspecified open wound of scalp.
S01.00XA Unspecified open wound of scalp, initial encounter.
S01.00XD Unspecified open wound of scalp, subsequent encounter.
S01.00XS Unspecified open wound of scalp, sequela.
S01.01 Laceration without foreign body of scalp.
S01.01XA Laceration without foreign body of scalp, initial encounter.
S01.01XD Laceration without foreign body of scalp, subsequent encounter.
S01.01XS Laceration without foreign body of scalp, sequela.
S01.02 Laceration with foreign body of scalp.
S01.02XA Laceration with foreign body of scalp, initial encounter.
S01.02XD Laceration with foreign body of scalp, subsequent encounter.
S01.02XS Laceration with foreign body of scalp, sequela.
S01.03 Puncture wound without foreign body of scalp.
S01.03XA Puncture wound without foreign body of scalp, initial encounter.
S01.03XD Puncture wound without foreign body of scalp, subsequent encounter.
S01.03XS Puncture wound without foreign body of scalp, sequela.
S01.04 Puncture wound with foreign body of scalp.
S01.04XA Puncture wound with foreign body of scalp, initial encounter.
S01.04XD Puncture wound with foreign body of scalp, subsequent encounter.
S01.04XS Puncture wound with foreign body of scalp, sequela.
S01.05 Open bite of scalp.
S01.05XA Open bite of scalp, initial encounter.
S01.05XD Open bite of scalp, subsequent encounter.
S01.05XS Open bite of scalp, sequela.
S01.1 Open wound of eyelid and periocular area.
S01.10 Unspecified open wound of eyelid and periocular area.
S01.101 Unspecified open wound of right eyelid and periocular area.
S01.101A Unspecified open wound of right eyelid and periocular area, initial encounter.
S01.101D Unspecified open wound of right eyelid and periocular area, subsequent encounter.
S01.101S Unspecified open wound of right eyelid and periocular area, sequela.
S01.102 Unspecified open wound of left eyelid and periocular area.
S01.102A Unspecified open wound of left eyelid and periocular area, initial encounter.
S01.102D Unspecified open wound of left eyelid and periocular area, subsequent encounter.
S01.102S Unspecified open wound of left eyelid and periocular area, sequela.
S01.109 Unspecified open wound of unspecified eyelid and periocular area.
S01.109A Unspecified open wound of unspecified eyelid and periocular area, initial encounter.
S01.109D Unspecified open wound of unspecified eyelid and periocular area, subsequent encounter.
S01.109S Unspecified open wound of unspecified eyelid and periocular area, sequela.
S01.11 Laceration without foreign body of eyelid and periocular area.
S01.111 Laceration without foreign body of right eyelid and periocular area.
S01.111A Laceration without foreign body of right eyelid and periocular area, initial encounter.
S01.111D Laceration without foreign body of right eyelid and periocular area, subsequent encounter.
S01.111S Laceration without foreign body of right eyelid and periocular area, sequela.
S01.112 Laceration without foreign body of left eyelid and periocular area.
S01.112A Laceration without foreign body of left eyelid and periocular area, initial encounter.
S01.112D Laceration without foreign body of left eyelid and periocular area, subsequent encounter.
S01.112S Laceration without foreign body of left eyelid and periocular area, sequela.
S01.119 Laceration without foreign body of unspecified eyelid and periocular area.
S01.119A Laceration without foreign body of unspecified eyelid and periocular area, initial encounter.

Code History

FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.