S36.61XD ICD-10-CM Code: Primary blast injury of rectum, subsequent encounter
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Inpatient Payment Groups (MS-DRG)
MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0, Appendix B.
- MS-DRG 949 — AFTERCARE WITH CC/MCC (MDC 23)
- MS-DRG 950 — AFTERCARE WITHOUT CC/MCC (MDC 23)
A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.
Official Registry Overview & Definition
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S36.61XD in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- injuries to the abdominal wall
- injuries to the anus
- injuries to the buttock
- injuries to the external genitalia
- injuries to the flank
- injuries to the groin
Inclusion Terms
Alternative terms the tabular list files under this code.
- Blast injury of rectum NOS
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- burns and corrosions (T20-T32) Compare S36.61XD vs T20 →
- effects of foreign body in anus and rectum (T18.5) Compare S36.61XD vs T18.5 →
- effects of foreign body in genitourinary tract (T19.-) Compare S36.61XD vs T19 →
- effects of foreign body in stomach, small intestine and colon (T18.2-T18.4) Compare S36.61XD vs T18.2 →
- frostbite (T33-T34) Compare S36.61XD vs T33 →
- insect bite or sting, venomous (T63.4) Compare S36.61XD vs T63.4 →
Code Also
Additional codes that may be required to fully describe the encounter.
- any associated open wound (S31.-)
Change history
No changes recorded for this code — unchanged since the FY2016 baseline of the change ledger.
Verify Before Coding
- Billable — reportable as written.
From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.
Contextual Map
Every relationship of S36.61XD in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Hierarchy
- S00-T88 — Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) (S00-T88) [Hierarchy]
- S30-S39 — Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals [Hierarchy]
Referenced by Excludes2 notes
- S36.5 — Injury of colon [Excludes2](via S36.6.-): “injury of rectum (S36.6-)” · check together
Referenced by Use Additional Code instructions
- S38.1 — Crushing injury of abdomen, lower back, and pelvis [Use Additional Code](via S36.-): “injury to intra-abdominal organs (S36.-)” · check together
Clinical classification (CCSR)
- INJ047 — Internal organ injury, subsequent encounter [CCSR]
Potential MS-DRG
- DRG 949 — AFTERCARE WITH CC/MCC [MS-DRG]: “AFTERCARE WITH CC/MCC (MDC 23)”
- DRG 950 — AFTERCARE WITHOUT CC/MCC [MS-DRG]: “AFTERCARE WITHOUT CC/MCC (MDC 23)”
MDC crossing · procedures (1235)
- MDC 23 — Factors Influencing Health Status and Other Contacts with Health Services [MDC crossing]: “Factors Influencing Health Status and Other Contacts with Health Services — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”
- F003GKZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Audiovisual Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Audiovisual Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
- F003GMZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Augmentative / Alternative Communication Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Augmentative / Alternative Communication Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
- F003GPZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Computer [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Computer — grouped in MDC 23, the procedure side of this code's crossing.” · check together
- F003GYZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Other Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Other Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
- F003GZZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body — grouped in MDC 23, the procedure side of this code's crossing.” · check together
- and 1230 more
Nearest codes (40)
- S36 — Injury of intra-abdominal organs [Sibling]
- S36.592S — Other injury of descending [left] colon, sequela [Sibling]
- S36.593 — Other injury of sigmoid colon [Sibling]
- S36.593A — Other injury of sigmoid colon, initial encounter [Sibling]
- S36.593D — Other injury of sigmoid colon, subsequent encounter [Sibling]
- S36.593S — Other injury of sigmoid colon, sequela [Sibling]
- S36.598 — Other injury of other part of colon [Sibling]
- S36.598A — Other injury of other part of colon, initial encounter [Sibling]
- and 32 more
Referenced by Other Codes
Clinical classification (AHRQ CCSR):INJ047 — Internal organ injury, subsequent encounter (default).
Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.
Potential MS-DRG Relationships (FY2026)
Not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity.
Named in the grouper logic of 2 MS-DRGs: DRG 949 (MDC 23), DRG 950 (MDC 23).
From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.
Official ICD-10-CM tabular notes on other codes that name S36.61XD or its code family.
1 Excludes2 notes: S36.5 (via S36.6.-).
1 Use Additional Code instructions: S38.1 (via S36.-).
Frequently Asked Questions (FAQ) & Clinical Guidance
Does S36.61XD require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S36.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to S36.61XD in its code family, with their registry titles.
- S36.60XA — Unspecified injury of rectum, initial encounter
- S36.60XD — Unspecified injury of rectum, subsequent encounter
- S36.60XS — Unspecified injury of rectum, sequela
- S36.61 — Primary blast injury of rectum
- S36.61XA — Primary blast injury of rectum, initial encounter
- S36.61XS — Primary blast injury of rectum, sequela
- S36.62 — Contusion of rectum
- S36.62XA — Contusion of rectum, initial encounter
- S36.62XD — Contusion of rectum, subsequent encounter
- S36.62XS — Contusion of rectum, sequela