ICD↔CPT crosswalk
CPT 44405: ICD-10 codes that support medical necessity
These ICD-10-CM diagnoses support medical necessity for CPT 44405 under Medicare coverage policies (LCDs, NCDs, and Billing & Coding articles). Billing CPT 44405 with a diagnosis that isn't covered typically denies as CARC 50 — not medically necessary.
National approximation. Coverage varies by MAC and state — confirm against the specific LCD/NCD and article that applies to your jurisdiction and date of service.
| ICD-10 | Description |
|---|---|
| A04.3 | Enterohemorrhagic Escherichia coli infection |
| A04.5 | Campylobacter enteritis |
| A04.71 | Enterocolitis due to Clostridium difficile, recurrent |
| A04.72 | Enterocolitis due to Clostridium difficile, not specified as recurrent |
| A06.0 | Acute amebic dysentery |
| A06.1 | Chronic intestinal amebiasis |
| A06.2 | Amebic nondysenteric colitis |
| A06.9 | Amebiasis, unspecified |
| A09 | Infectious gastroenteritis and colitis, unspecified |
| A18.31 | Tuberculous peritonitis |
| A18.32 | Tuberculous enteritis |
| A18.39 | Retroperitoneal tuberculosis |
| A18.83 | Tuberculosis of digestive tract organs, not elsewhere classified |
| A41.01 | Sepsis due to Methicillin susceptible Staphylococcus aureus |
| A41.02 | Sepsis due to Methicillin resistant Staphylococcus aureus |
| A41.4 | Sepsis due to anaerobes |
| A41.50 | Gram-negative sepsis, unspecified |
| A41.51 | Sepsis due to Escherichia coli [E. coli] |
| A41.52 | Sepsis due to Pseudomonas |
| A41.53 | Sepsis due to Serratia |
| A41.54 | Sepsis due to Acinetobacter baumannii |
| A41.59 | Other Gram-negative sepsis |
| A41.81 | Sepsis due to Enterococcus |
| A41.89 | Other specified sepsis |
| A42.7 | Actinomycotic sepsis |
| B20 | Human immunodeficiency virus [HIV] disease |
| B95.1 | Streptococcus, group B, as the cause of diseases classified elsewhere |
| B95.2 | Enterococcus as the cause of diseases classified elsewhere |
| C18.0 | Malignant neoplasm of cecum |
| C18.1 | Malignant neoplasm of appendix |
| C18.2 | Malignant neoplasm of ascending colon |
| C18.3 | Malignant neoplasm of hepatic flexure |
| C18.4 | Malignant neoplasm of transverse colon |
| C18.5 | Malignant neoplasm of splenic flexure |
| C18.6 | Malignant neoplasm of descending colon |
| C18.7 | Malignant neoplasm of sigmoid colon |
| C18.8 | Malignant neoplasm of overlapping sites of colon |
| C18.9 | Malignant neoplasm of colon, unspecified |
| C19 | Malignant neoplasm of rectosigmoid junction |
| C20 | Malignant neoplasm of rectum |
| C21.0 | Malignant neoplasm of anus, unspecified |
| C21.1 | Malignant neoplasm of anal canal |
| C21.2 | Malignant neoplasm of cloacogenic zone |
| C21.8 | Malignant neoplasm of overlapping sites of rectum, anus and anal canal |
| C26.0 | Malignant neoplasm of intestinal tract, part unspecified |
| C26.9 | Malignant neoplasm of ill-defined sites within the digestive system |
| C45.1 | Mesothelioma of peritoneum |
| C46.4 | Kaposi's sarcoma of gastrointestinal sites |
| C48.1 | Malignant neoplasm of specified parts of peritoneum |
| C48.2 | Malignant neoplasm of peritoneum, unspecified |
| C48.8 | Malignant neoplasm of overlapping sites of retroperitoneum and peritoneum |
| C49.4 | Malignant neoplasm of connective and soft tissue of abdomen |
| C49.A3 | Gastrointestinal stromal tumor of small intestine |
| C49.A4 | Gastrointestinal stromal tumor of large intestine |
| C49.A5 | Gastrointestinal stromal tumor of rectum |
| C49.A9 | Gastrointestinal stromal tumor of other sites |
| C76.2 | Malignant neoplasm of abdomen |
| C76.3 | Malignant neoplasm of pelvis |
| C77.2 | Secondary and unspecified malignant neoplasm of intra-abdominal lymph nodes |
| C78.5 | Secondary malignant neoplasm of large intestine and rectum |
| C78.6 | Secondary malignant neoplasm of retroperitoneum and peritoneum |
| C78.7 | Secondary malignant neoplasm of liver and intrahepatic bile duct |
| C7A.010 | Malignant carcinoid tumor of the duodenum |
| C7A.011 | Malignant carcinoid tumor of the jejunum |
| C7A.012 | Malignant carcinoid tumor of the ileum |
| C7A.019 | Malignant carcinoid tumor of the small intestine, unspecified portion |
| C7A.020 | Malignant carcinoid tumor of the appendix |
| C7A.021 | Malignant carcinoid tumor of the cecum |
| C7A.022 | Malignant carcinoid tumor of the ascending colon |
| C7A.023 | Malignant carcinoid tumor of the transverse colon |
| C7A.024 | Malignant carcinoid tumor of the descending colon |
| C7A.025 | Malignant carcinoid tumor of the sigmoid colon |
| C7A.026 | Malignant carcinoid tumor of the rectum |
| C7A.029 | Malignant carcinoid tumor of the large intestine, unspecified portion |
| C80.0 | Disseminated malignant neoplasm, unspecified |
| C80.2 | Malignant neoplasm associated with transplanted organ |
| C82.09 | Follicular lymphoma grade I, extranodal and solid organ sites |
| C82.19 | Follicular lymphoma grade II, extranodal and solid organ sites |
| C82.29 | Follicular lymphoma grade III, unspecified, extranodal and solid organ sites |
| C82.39 | Follicular lymphoma grade IIIa, extranodal and solid organ sites |
| C82.49 | Follicular lymphoma grade IIIb, extranodal and solid organ sites |
| C82.89 | Other types of follicular lymphoma, extranodal and solid organ sites |
| C82.99 | Follicular lymphoma, unspecified, extranodal and solid organ sites |
| C83.398 | Diffuse large B-cell lymphoma of other extranodal and solid organ sites |
| C88.40 | Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue [MALT-lymphoma] not having achieved remission |
| D00.1 | Carcinoma in situ of esophagus |
| D00.2 | Carcinoma in situ of stomach |
| D01.0 | Carcinoma in situ of colon |
| D01.1 | Carcinoma in situ of rectosigmoid junction |
| D01.2 | Carcinoma in situ of rectum |
| D01.3 | Carcinoma in situ of anus and anal canal |
| D12.0 | Benign neoplasm of cecum |
| D12.1 | Benign neoplasm of appendix |
| D12.2 | Benign neoplasm of ascending colon |
| D12.3 | Benign neoplasm of transverse colon |
| D12.4 | Benign neoplasm of descending colon |
| D12.5 | Benign neoplasm of sigmoid colon |
| D12.6 | Benign neoplasm of colon, unspecified |
| D12.7 | Benign neoplasm of rectosigmoid junction |
| D12.8 | Benign neoplasm of rectum |
| D12.9 | Benign neoplasm of anus and anal canal |
| D13.91 | Familial adenomatous polyposis |
| D37.1 | Neoplasm of uncertain behavior of stomach |
| D37.2 | Neoplasm of uncertain behavior of small intestine |
| D37.3 | Neoplasm of uncertain behavior of appendix |
| D37.4 | Neoplasm of uncertain behavior of colon |
| D37.5 | Neoplasm of uncertain behavior of rectum |
| D37.8 | Neoplasm of uncertain behavior of other specified digestive organs |
| D3A.010 | Benign carcinoid tumor of the duodenum |
| D3A.011 | Benign carcinoid tumor of the jejunum |
| D3A.012 | Benign carcinoid tumor of the ileum |
| D3A.019 | Benign carcinoid tumor of the small intestine, unspecified portion |
| D3A.020 | Benign carcinoid tumor of the appendix |
| D3A.021 | Benign carcinoid tumor of the cecum |
| D3A.022 | Benign carcinoid tumor of the ascending colon |
| D3A.023 | Benign carcinoid tumor of the transverse colon |
| D3A.024 | Benign carcinoid tumor of the descending colon |
| D3A.025 | Benign carcinoid tumor of the sigmoid colon |
| D3A.026 | Benign carcinoid tumor of the rectum |
| D3A.029 | Benign carcinoid tumor of the large intestine, unspecified portion |
| D3A.096 | Benign carcinoid tumor of the hindgut, unspecified |
| D49.0 | Neoplasm of unspecified behavior of digestive system |
| D50.0 | Iron deficiency anemia secondary to blood loss (chronic) |
| D50.9 | Iron deficiency anemia, unspecified |
| D62 | Acute posthemorrhagic anemia |
| E34.00 | Carcinoid syndrome, unspecified |
| E34.01 | Carcinoid heart syndrome |
| E34.09 | Other carcinoid syndrome |
| E44.0 | Moderate protein-calorie malnutrition |
| I33.0 | Acute and subacute infective endocarditis |
| I78.0 | Hereditary hemorrhagic telangiectasia |
| K50.00 | Crohn's disease of small intestine without complications |
| K50.011 | Crohn's disease of small intestine with rectal bleeding |
| K50.012 | Crohn's disease of small intestine with intestinal obstruction |
| K50.013 | Crohn's disease of small intestine with fistula |
| K50.014 | Crohn's disease of small intestine with abscess |
| K50.018 | Crohn's disease of small intestine with other complication |
| K50.019 | Crohn's disease of small intestine with unspecified complications |
| K50.10 | Crohn's disease of large intestine without complications |
| K50.111 | Crohn's disease of large intestine with rectal bleeding |
| K50.112 | Crohn's disease of large intestine with intestinal obstruction |
| K50.113 | Crohn's disease of large intestine with fistula |
| K50.114 | Crohn's disease of large intestine with abscess |
| K50.118 | Crohn's disease of large intestine with other complication |
| K50.119 | Crohn's disease of large intestine with unspecified complications |
| K50.80 | Crohn's disease of both small and large intestine without complications |
| K50.811 | Crohn's disease of both small and large intestine with rectal bleeding |
| K50.812 | Crohn's disease of both small and large intestine with intestinal obstruction |
| K50.813 | Crohn's disease of both small and large intestine with fistula |
| K50.814 | Crohn's disease of both small and large intestine with abscess |
| K50.818 | Crohn's disease of both small and large intestine with other complication |
| K50.819 | Crohn's disease of both small and large intestine with unspecified complications |
| K50.90 | Crohn's disease, unspecified, without complications |
| K50.911 | Crohn's disease, unspecified, with rectal bleeding |
| K50.912 | Crohn's disease, unspecified, with intestinal obstruction |
| K50.913 | Crohn's disease, unspecified, with fistula |
| K50.914 | Crohn's disease, unspecified, with abscess |
| K50.918 | Crohn's disease, unspecified, with other complication |
| K50.919 | Crohn's disease, unspecified, with unspecified complications |
| K51.00 | Ulcerative (chronic) pancolitis without complications |
| K51.011 | Ulcerative (chronic) pancolitis with rectal bleeding |
| K51.012 | Ulcerative (chronic) pancolitis with intestinal obstruction |
| K51.013 | Ulcerative (chronic) pancolitis with fistula |
| K51.014 | Ulcerative (chronic) pancolitis with abscess |
| K51.018 | Ulcerative (chronic) pancolitis with other complication |
| K51.019 | Ulcerative (chronic) pancolitis with unspecified complications |
| K51.20 | Ulcerative (chronic) proctitis without complications |
| K51.211 | Ulcerative (chronic) proctitis with rectal bleeding |
| K51.212 | Ulcerative (chronic) proctitis with intestinal obstruction |
| K51.213 | Ulcerative (chronic) proctitis with fistula |
| K51.214 | Ulcerative (chronic) proctitis with abscess |
| K51.218 | Ulcerative (chronic) proctitis with other complication |
| K51.219 | Ulcerative (chronic) proctitis with unspecified complications |
| K51.30 | Ulcerative (chronic) rectosigmoiditis without complications |
| K51.311 | Ulcerative (chronic) rectosigmoiditis with rectal bleeding |
| K51.312 | Ulcerative (chronic) rectosigmoiditis with intestinal obstruction |
| K51.313 | Ulcerative (chronic) rectosigmoiditis with fistula |
| K51.314 | Ulcerative (chronic) rectosigmoiditis with abscess |
| K51.318 | Ulcerative (chronic) rectosigmoiditis with other complication |
| K51.319 | Ulcerative (chronic) rectosigmoiditis with unspecified complications |
| K51.40 | Inflammatory polyps of colon without complications |
| K51.411 | Inflammatory polyps of colon with rectal bleeding |
| K51.412 | Inflammatory polyps of colon with intestinal obstruction |
| K51.413 | Inflammatory polyps of colon with fistula |
| K51.414 | Inflammatory polyps of colon with abscess |
| K51.418 | Inflammatory polyps of colon with other complication |
| K51.419 | Inflammatory polyps of colon with unspecified complications |
| K51.50 | Left sided colitis without complications |
| K51.511 | Left sided colitis with rectal bleeding |
| K51.512 | Left sided colitis with intestinal obstruction |
| K51.513 | Left sided colitis with fistula |
| K51.514 | Left sided colitis with abscess |
| K51.518 | Left sided colitis with other complication |
| K51.519 | Left sided colitis with unspecified complications |
| K51.80 | Other ulcerative colitis without complications |
| K51.811 | Other ulcerative colitis with rectal bleeding |
| K51.812 | Other ulcerative colitis with intestinal obstruction |
| K51.813 | Other ulcerative colitis with fistula |
| K51.814 | Other ulcerative colitis with abscess |
| K51.818 | Other ulcerative colitis with other complication |
| K51.819 | Other ulcerative colitis with unspecified complications |
| K51.90 | Ulcerative colitis, unspecified, without complications |
| K51.911 | Ulcerative colitis, unspecified with rectal bleeding |
| K51.912 | Ulcerative colitis, unspecified with intestinal obstruction |
| K51.913 | Ulcerative colitis, unspecified with fistula |
| K51.914 | Ulcerative colitis, unspecified with abscess |
| K51.918 | Ulcerative colitis, unspecified with other complication |
| K51.919 | Ulcerative colitis, unspecified with unspecified complications |
| K52.0 | Gastroenteritis and colitis due to radiation |
| K52.1 | Toxic gastroenteritis and colitis |
| K52.21 | Food protein-induced enterocolitis syndrome |
| K52.22 | Food protein-induced enteropathy |
| K52.29 | Other allergic and dietetic gastroenteritis and colitis |
| K52.3 | Indeterminate colitis |
| K52.81 | Eosinophilic gastritis or gastroenteritis |
| K52.82 | Eosinophilic colitis |
| K52.831 | Collagenous colitis |
| K52.832 | Lymphocytic colitis |
| K52.838 | Other microscopic colitis |
| K52.89 | Other specified noninfective gastroenteritis and colitis |
| K52.9 | Noninfective gastroenteritis and colitis, unspecified |
| K55.011 | Focal (segmental) acute (reversible) ischemia of small intestine |
| K55.012 | Diffuse acute (reversible) ischemia of small intestine |
| K55.019 | Acute (reversible) ischemia of small intestine, extent unspecified |
| K55.021 | Focal (segmental) acute infarction of small intestine |
| K55.022 | Diffuse acute infarction of small intestine |
| K55.029 | Acute infarction of small intestine, extent unspecified |
| K55.031 | Focal (segmental) acute (reversible) ischemia of large intestine |
| K55.032 | Diffuse acute (reversible) ischemia of large intestine |
| K55.039 | Acute (reversible) ischemia of large intestine, extent unspecified |
| K55.041 | Focal (segmental) acute infarction of large intestine |
| K55.042 | Diffuse acute infarction of large intestine |
| K55.049 | Acute infarction of large intestine, extent unspecified |
| K55.051 | Focal (segmental) acute (reversible) ischemia of intestine, part unspecified |
| K55.052 | Diffuse acute (reversible) ischemia of intestine, part unspecified |
| K55.061 | Focal (segmental) acute infarction of intestine, part unspecified |
| K55.062 | Diffuse acute infarction of intestine, part unspecified |
| K55.1 | Chronic vascular disorders of intestine |
| K55.20 | Angiodysplasia of colon without hemorrhage |
| K55.21 | Angiodysplasia of colon with hemorrhage |
| K55.30 | Necrotizing enterocolitis, unspecified |
| K55.31 | Stage 1 necrotizing enterocolitis |
| K55.32 | Stage 2 necrotizing enterocolitis |
| K55.33 | Stage 3 necrotizing enterocolitis |
| K55.8 | Other vascular disorders of intestine |
| K55.9 | Vascular disorder of intestine, unspecified |
| K56.0 | Paralytic ileus |
| K56.1 | Intussusception |
| K56.2 | Volvulus |
| K56.3 | Gallstone ileus |
| K56.41 | Fecal impaction |
| K56.49 | Other impaction of intestine |
| K56.50 | Intestinal adhesions [bands], unspecified as to partial versus complete obstruction |
| K56.51 | Intestinal adhesions [bands], with partial obstruction |
| K56.52 | Intestinal adhesions [bands] with complete obstruction |
| K56.600 | Partial intestinal obstruction, unspecified as to cause |
| K56.601 | Complete intestinal obstruction, unspecified as to cause |
| K56.609 | Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction |
| K56.690 | Other partial intestinal obstruction |
| K56.691 | Other complete intestinal obstruction |
| K56.699 | Other intestinal obstruction unspecified as to partial versus complete obstruction |
| K56.7 | Ileus, unspecified |
| K57.20 | Diverticulitis of large intestine with perforation and abscess without bleeding |
| K57.21 | Diverticulitis of large intestine with perforation and abscess with bleeding |
| K57.30 | Diverticulosis of large intestine without perforation or abscess without bleeding |
| K57.31 | Diverticulosis of large intestine without perforation or abscess with bleeding |
| K57.32 | Diverticulitis of large intestine without perforation or abscess without bleeding |
| K57.33 | Diverticulitis of large intestine without perforation or abscess with bleeding |
| K57.40 | Diverticulitis of both small and large intestine with perforation and abscess without bleeding |
| K57.41 | Diverticulitis of both small and large intestine with perforation and abscess with bleeding |
| K57.50 | Diverticulosis of both small and large intestine without perforation or abscess without bleeding |
| K57.51 | Diverticulosis of both small and large intestine without perforation or abscess with bleeding |
| K57.52 | Diverticulitis of both small and large intestine without perforation or abscess without bleeding |
| K57.53 | Diverticulitis of both small and large intestine without perforation or abscess with bleeding |
| K57.80 | Diverticulitis of intestine, part unspecified, with perforation and abscess without bleeding |
| K57.81 | Diverticulitis of intestine, part unspecified, with perforation and abscess with bleeding |
| K57.90 | Diverticulosis of intestine, part unspecified, without perforation or abscess without bleeding |
| K57.91 | Diverticulosis of intestine, part unspecified, without perforation or abscess with bleeding |
| K57.92 | Diverticulitis of intestine, part unspecified, without perforation or abscess without bleeding |
| K57.93 | Diverticulitis of intestine, part unspecified, without perforation or abscess with bleeding |
| K58.0 | Irritable bowel syndrome with diarrhea |
| K58.1 | Irritable bowel syndrome with constipation |
| K58.2 | Mixed irritable bowel syndrome |
| K58.8 | Other irritable bowel syndrome |
| K58.9 | Irritable bowel syndrome, unspecified |
| K59.01 | Slow transit constipation |
| K59.02 | Outlet dysfunction constipation |
| K59.03 | Drug induced constipation |
| K59.04 | Chronic idiopathic constipation |
| K59.09 | Other constipation |
| K59.1 | Functional diarrhea |
| K59.2 | Neurogenic bowel, not elsewhere classified |
| K59.31 | Toxic megacolon |
| K59.39 | Other megacolon |
| K59.4 | Anal spasm |
| K59.81 | Ogilvie syndrome |
| K59.89 | Other specified functional intestinal disorders |
| K62.0 | Anal polyp |
| K62.1 | Rectal polyp |
| K62.2 | Anal prolapse |
| K62.3 | Rectal prolapse |
| K62.4 | Stenosis of anus and rectum |
| K62.5 | Hemorrhage of anus and rectum |
| K62.6 | Ulcer of anus and rectum |
| K62.7 | Radiation proctitis |
| K62.81 | Anal sphincter tear (healed) (nontraumatic) (old) |
| K62.82 | Dysplasia of anus |
| K62.89 | Other specified diseases of anus and rectum |
| K63.1 | Perforation of intestine (nontraumatic) |
| K63.2 | Fistula of intestine |
| K63.3 | Ulcer of intestine |
| K63.4 | Enteroptosis |
| K63.5 | Polyp of colon |
| K63.81 | Dieulafoy lesion of intestine |
| K63.8211 | Small intestinal bacterial overgrowth, hydrogen-subtype |
| K63.8212 | Small intestinal bacterial overgrowth, hydrogen sulfide-subtype |
| K63.8219 | Small intestinal bacterial overgrowth, unspecified |
| K63.822 | Small intestinal fungal overgrowth |
| K63.829 | Intestinal methanogen overgrowth, unspecified |
| K63.89 | Other specified diseases of intestine |
| K64.0 | First degree hemorrhoids |
| K64.1 | Second degree hemorrhoids |
| K64.2 | Third degree hemorrhoids |
| K64.3 | Fourth degree hemorrhoids |
| K64.4 | Residual hemorrhoidal skin tags |
| K64.5 | Perianal venous thrombosis |
| K64.8 | Other hemorrhoids |
| K64.9 | Unspecified hemorrhoids |
| K90.1 | Tropical sprue |
| K91.1 | Postgastric surgery syndromes |
| K91.30 | Postprocedural intestinal obstruction, unspecified as to partial versus complete |
| K91.31 | Postprocedural partial intestinal obstruction |
| K91.32 | Postprocedural complete intestinal obstruction |
| K91.850 | Pouchitis |
| K91.858 | Other complications of intestinal pouch |
| K91.89 | Other postprocedural complications and disorders of digestive system |
| K92.1 | Melena |
| K92.2 | Gastrointestinal hemorrhage, unspecified |
| K92.81 | Gastrointestinal mucositis (ulcerative) |
| K92.89 | Other specified diseases of the digestive system |
| K94.01 | Colostomy hemorrhage |
| K94.02 | Colostomy infection |
| K94.03 | Colostomy malfunction |
| K94.09 | Other complications of colostomy |
| K94.11 | Enterostomy hemorrhage |
| K94.12 | Enterostomy infection |
| K94.13 | Enterostomy malfunction |
| K94.19 | Other complications of enterostomy |
| L83 | Acanthosis nigricans |
| N32.1 | Vesicointestinal fistula |
| N82.2 | Fistula of vagina to small intestine |
| N82.3 | Fistula of vagina to large intestine |
| N82.4 | Other female intestinal-genital tract fistulae |
| Q42.8 | Congenital absence, atresia and stenosis of other parts of large intestine |
| Q85.81 | PTEN hamartoma tumor syndrome |
| Q85.82 | Other Cowden syndrome |
| Q85.83 | Von Hippel-Lindau syndrome |
| Q85.89 | Other phakomatoses, not elsewhere classified |
| Q85.9 | Phakomatosis, unspecified |
| R10.0 | Acute abdomen |
| R10.11 | Right upper quadrant pain |
| R10.12 | Left upper quadrant pain |
| R10.13 | Epigastric pain |
| R10.20 | Pelvic and perineal pain unspecified side |
| R10.21 | Pelvic and perineal pain right side |
| R10.22 | Pelvic and perineal pain left side |
| R10.23 | Pelvic and perineal pain bilateral |
| R10.24 | Suprapubic pain |
| R10.30 | Lower abdominal pain, unspecified |
| R10.31 | Right lower quadrant pain |
| R10.32 | Left lower quadrant pain |
| R10.33 | Periumbilical pain |
| R10.813 | Right lower quadrant abdominal tenderness |
| R10.814 | Left lower quadrant abdominal tenderness |
| R10.815 | Periumbilic abdominal tenderness |
| R10.817 | Generalized abdominal tenderness |
| R10.84 | Generalized abdominal pain |
| R10.85 | Abdominal pain of multiple sites |
| R11.13 | Vomiting of fecal matter |
| R19.4 | Change in bowel habit |
| R19.5 | Other fecal abnormalities |
| R19.7 | Diarrhea, unspecified |
| R19.8 | Other specified symptoms and signs involving the digestive system and abdomen |
| R63.4 | Abnormal weight loss |
| R71.0 | Precipitous drop in hematocrit |
| R93.3 | Abnormal findings on diagnostic imaging of other parts of digestive tract |
| T18.3XXA | Foreign body in small intestine, initial encounter |
| T18.3XXD | Foreign body in small intestine, subsequent encounter |
| T18.3XXS | Foreign body in small intestine, sequela |
| T18.4XXA | Foreign body in colon, initial encounter |
| T18.4XXD | Foreign body in colon, subsequent encounter |
| T18.4XXS | Foreign body in colon, sequela |
| T18.5XXA | Foreign body in anus and rectum, initial encounter |
| T18.5XXD | Foreign body in anus and rectum, subsequent encounter |
| T18.5XXS | Foreign body in anus and rectum, sequela |
| Z08 | Encounter for follow-up examination after completed treatment for malignant neoplasm |
| Z09 | Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm |
| Z85.01 | Personal history of malignant neoplasm of esophagus |
| Z85.020 | Personal history of malignant carcinoid tumor of stomach |
| Z85.028 | Personal history of other malignant neoplasm of stomach |
Showing the first 400 of 418 covered codes — this procedure has a large covered-diagnosis set; see the governing LCD/article for the complete list.
Frequently asked questions
Which ICD-10 codes support medical necessity for CPT 44405?
Medicare coverage policies (LCDs/NCDs and Billing & Coding articles) list 418 ICD-10 diagnosis codes that support medical necessity for CPT 44405. The covered codes are listed on this page. Coverage varies by MAC/state — always confirm against the policy that applies to you.
What is a medical-necessity (LCD/NCD) crosswalk?
A claim whose procedure isn't supported by a covered diagnosis denies as "not medically necessary" (CARC 50). CMS coverage policies define which diagnoses justify a procedure; this page is the ICD-10 → CPT 44405 view of that relationship.
Catch medical-necessity denials before you bill. CareNiva scrubs claims against LCD/NCD coverage and flags unsupported diagnoses — in the same platform you run visits and billing.
More free billing tools: all crosswalks · NCCI edits · Medicare fees · denial codes
Informational only, not coding, billing, or legal advice. Based on CMS Medicare Coverage Database data; verify the current LCD/NCD for your MAC before billing.
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