2019 ICD-10-CM Diagnosis Code S00.521A

Blister (nonthermal) of lip, initial encounter

The following code(s) above S00.521A contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to S00.521A:
  • S00-T88
    2019 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
    Type 1 Excludes
    Use Additional
    • code to identify any retained foreign body, if applicable (Z18.-)
    Injury, poisoning and certain other consequences of external causes
  • S00-S09
    2019 ICD-10-CM Range S00-S09

    Injuries to the head

    Code Also
    • for any associated infection
    • injuries of ear
    • injuries of eye
    • injuries of face [any part]
    • injuries of gum
    • injuries of jaw
    • injuries of oral cavity
    • injuries of palate
    • injuries of periocular area
    • injuries of scalp
    • injuries of temporomandibular joint area
    • injuries of tongue
    • injuries of tooth
    Type 2 Excludes
    • burns and corrosions (T20-T32)
    • effects of foreign body in ear (T16)
    • effects of foreign body in larynx (T17.3)
    • effects of foreign body in mouth NOS (T18.0)
    • effects of foreign body in nose (T17.0-T17.1)
    • effects of foreign body in pharynx (T17.2)
    • effects of foreign body on external eye (T15.-)
    • frostbite (T33-T34)
    • insect bite or sting, venomous (T63.4)
    Injuries to the head
  • S00
    ICD-10-CM Diagnosis Code S00

    Superficial injury of head

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • diffuse cerebral contusion (S06.2-)
    • focal cerebral contusion (S06.3-)
    • injury of eye and orbit (S05.-)
    • open wound of head (S01.-)
    Superficial injury of head
Approximate Synonyms ICD-10-CM S00.521A is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):

Convert S00.521A to ICD-9-CM

Code History
ICD-10-CM Codes Adjacent To S00.521A
S00.511 Abrasion of lip
S00.511A …… initial encounter
S00.511D …… subsequent encounter
S00.511S …… sequela
S00.512 Abrasion of oral cavity
S00.512A …… initial encounter
S00.512D …… subsequent encounter
S00.512S …… sequela
S00.52 Blister (nonthermal) of lip and oral cavity
S00.521 Blister (nonthermal) of lip
S00.521A …… initial encounter
S00.521D …… subsequent encounter
S00.521S …… sequela
S00.522 Blister (nonthermal) of oral cavity
S00.522A …… initial encounter
S00.522D …… subsequent encounter
S00.522S …… sequela
S00.53 Contusion of lip and oral cavity
S00.531 Contusion of lip
S00.531A …… initial encounter
S00.531D …… subsequent encounter

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.