2026 ICD-10-CM Diagnosis Code S30.861SInsect bite (nonvenomous) of abdominal wall, sequela

ICD-10-CM Codes›S00–T88›S30-S39›S30

ICD-10-CM S30.861S
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S30.861S is a billable ICD-10-CM diagnosis code for insect bite (nonvenomous) of abdominal wall, sequela. The 7th character S marks it as a sequela code, which reports a problem that remains after the original condition has resolved. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 604 through 605. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury, sequela.

Code Identity

ICD-10-CM Code
S30.861S
Billable Status
Yes — Valid for Submission
Code Describes
Insect bite (nonvenomous) of abdominal wall, sequela
Short Description
Insect bite (nonvenomous) of abdominal wall, sequela
Same as the full description in the CMS dataset.
Parent Code
S30.861
Insect bite (nonvenomous) of abdominal wall

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS30-S39Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals
CategoryS30Superficial injury of abdomen, lower back, pelvis and external genitals
This CodeS30.861SInsect bite (nonvenomous) of abdominal wall, sequela

Present on Admission (POA)Billing

S30.861S is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Animal bite of abdomen
  • Animal bite of groin
  • Infected insect bite of pelvic region
  • Insect bite, nonvenomous, of abdominal wall
  • Insect bite, nonvenomous, of flank
  • Insect bite, nonvenomous, of groin
  • Nonvenomous insect bite of abdominal wall with infection
  • Nonvenomous insect bite of abdominal wall without infection
  • Nonvenomous insect bite of flank with infection
  • Nonvenomous insect bite of groin with infection
  • Nonvenomous insect bite of groin without infection
  • Nonvenomous insect bite of lower limb without infection
  • Nonvenomous insect bite of pelvis with infection
  • Nonvenomous insect bite of trunk without infection
  • Superficial injury of abdominal wall without infection
  • Superficial injury of flank with infection
  • Superficial injury of groin with infection

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Superficial injury of abdomen, lower back, pelvis and external genitals (S30). Use the following options for the applicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INJ073
Injury, sequela
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Insect Bites and Stings

Most insect bites are harmless, though they sometimes cause discomfort. Bee, wasp, and hornet stings and fire ant bites usually hurt. Mosquito and flea bites usually itch. Insects can also spread diseases. In the United States, some mosquitoes spread West Nile virus.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert S30.861S to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
906.2 Late eff superficial inj
Approximate The match is approximate rather than exact.

Code History & ChangesHistory

Replaced This code was replaced in the FY 2026 code set by:

  • S30.86AS - Insect bite (nonvenomous) of flank, sequela
  • S30.86AS - Insect bite (nonvenomous) of flank, sequela
FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About S30.861SOverview

Is S30.861S (Insect bite (nonvenomous) of abdominal wall) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report insect bite (nonvenomous) of abdominal wall, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character S in S30.861S mean?

The final character S makes this a sequela code: it reports a lingering problem that remains after the insect bite (nonvenomous) of abdominal wall itself has resolved, not the original event.

What MS-DRG does S30.861S group to?

When insect bite (nonvenomous) of abdominal wall, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 604, 605, with relative weights from 0.9160 to 1.4721 depending on complications. Higher weights mean higher Medicare reimbursement.

Is S30.861S exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for insect bite (nonvenomous) of abdominal wall, sequela on inpatient claims.

What is the ICD-9 equivalent of S30.861S?

Under the General Equivalence Mappings, insect bite (nonvenomous) of abdominal wall, sequela converts to ICD-9-CM 906.2 (late eff superficial inj). The mapping is approximate, so confirm the match fits the documentation.

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.